600N / Novalis Dose Delivery System (Linear Accelerator)...Technical User Guide Rev. 1.0, Novalis...

Technical User GuideRevision 1.0

600N / Novalis Dose Delivery System (Linear Accelerator)Version 1.0

Technical User Guide Rev. 1.0, Novalis Dose Delivery System Ver. 1.0 3

Table of Contents

1 General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

1.1 Symbols Used in this Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

1.1.1 Symbols on the System Hardware Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

1.1.2 Safety Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

2 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

3 Using Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

3.1 Entering Service Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

3.2 About the Service Mode Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

3.3 Selecting Options and Entering Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

3.4 Exiting Service Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

3.5 Entering and Exiting Physics Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

3.6 Operating in Physics Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

3.7 About Communications Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

3.8 Entering and Exiting Communications Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

4 Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

4.1 Using the SET UP Option . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

4.2 Setting the Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

4.3 Setting Mode for Dynamic Treatments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

4.4 Setting the Energy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

4.5 Setting the Repetition Rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

4.6 Setting the Dose . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

4.7 Setting the Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

4.8 Selecting Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

4.9 Resetting Parameters for Another Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

4.10 Beaming On . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

4.11 Testing the Dosimetry System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

4.12 Executing the Diagnostic Self-test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

5 Configuring System Values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

5.1 Configuring the Default Dose Rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

5.2 Configuring the Default Time Factor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

5.3 Changing Passwords . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

5.4 Configuring Maximum Doses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

5.5 Using the Morning Checkout Option . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

5.6 Adding a Treatment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

4 Technical User Guide Rev. 1.0, Novalis Dose Delivery System Ver. 1.0

5.7 Modifying a Treatment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

5.8 Removing a Treatment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

5.9 Retrieving a Treatment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

5.10 Configuring Customer-Defined Interlocks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

5.11 Configuring Date Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

5.12 Setting the Current Date . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

5.13 Configuring Time Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

5.14 Setting the Current Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

5.15 Configuring the RV Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

6 Downloading Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

6.1 Downloading the Current Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

6.2 Restoring the Original Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

7 Saving Configuration Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

7.1 Saving Service Mode Configuration Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

7.2 Saving Physics Mode Configuration Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

8 Working with Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

8.1 Backing Up a Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

8.2 Restoring a Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

8.3 Backing Up Event Logs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

8.4 Backing Up Morning Checkout Logs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

8.5 Viewing Logs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

8.6 Displaying Backup Logs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

9 Printing Configuration Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

10 Interlocks, Triggers and Lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

10.1 Using the INTLK/TRIG/LT Option . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

10.2 Overriding Interlocks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

10.3 Turning Triggers Off and On . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67

10.4 Turning Lights and Lasers Off and On . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68

11 Displaying Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69

11.1 Using the DISPLAY Option . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70

11.2 Displaying Machine Analog Meter Values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70

11.3 Displaying Analog PRO Meter Values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71

11.4 Displaying Meter Gain and Offset Factors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72

11.5 Displaying Pro Meter Gain and Offset Factors . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73

11.6 Displaying SPRO Values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74

11.7 Displaying the Status of Digital I/O Lines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74


11.8 Displaying Parameters for Positioning Motors . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75

11.9 Displaying Control Parameters for a Motor Axis . . . . . . . . . . . . . . . . . . . . . . . . . . 77

11.10 Displaying DBD Control Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78

11.11 Displaying Limits for Motor Axis Positions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79

11.12 Displaying Contents of Common RAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80

11.13 Displaying the Status of an I/O Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81

11.14 Displaying the Status of Control System Timers . . . . . . . . . . . . . . . . . . . . . . . . . . 81

11.15 Displaying the Current PRF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82

12 Controlling Motions in Service Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83

12.1 Controlling Motions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83

12.2 Moving a Motor Axis Manually . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84

12.3 Moving the Gantry Automatically . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85

12.4 Moving the Couch Automatically . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87

12.5 Initiating Motion While the Beam is On . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88

13 Calibrating PROs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89

13.1 Selecting PRO Scale . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89

13.2 Using the Analog Scaling Option . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90

13.3 Calibrating PROs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91

14 Redirecting Pendant Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93

15 Setting Service Mode Timeout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95

16 Using Remote Communications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97

16.1 Using the Modem Connect Option . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97

16.2 Starting and Ending a Session . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98

16.3 The Chat Window . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98

16.4 Transferring Log Files to BrainLAB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99

16.5 Printing a Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100

17 Interlocks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101

18 Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105

Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109



General Information

1 General Information

Overview This guide provides an introduction and reference for the effective and correct use of the Novalis Dose Delivery System. This guide is written for all members of the clinical team who use or handle the Novalis Dose Delivery System or parts of it. You should read this guide carefully and acquaint yourself sufficiently with the system before use.

Support If you cannot find the information you need in this guide, please contact BrainLAB support:

Copyright This guide contains proprietary information protected by copyright. No part of this guide may be reproduced or translated without the express written permission of BrainLAB.

Feedback Despite careful review, errors may appear. We look forward to your comments and suggestions, and can be contacted at [email protected], or at the support phone numbers listed above.

Trademarks • Novalis® is a registered trademark of BrainLAB AG.

• Microsoft® and Windows® are registered trademarks of Microsoft Corporation.

Manufacturer Varian Medical Systems Inc. - 3100 Hansen Way, Bldg 4A, Palo Alto, CA 94304, USA.

Distributor BrainLAB AG - Kapellenstr. 12 - 85622 - Feldkirchen - Germany.

Language Information

All BrainLAB user guides are originally drafted in English. The corresponding reference number for this manual is 60911-36EN.

United States and Canada Tel: +1-800-597-5911 Fax: +1-708-409-1619

Africa, Asia, Australia, Europe Tel: +49-89-991568-44 Fax: +49-89-991568-811

France & French-speaking regions Tel: +33-800-67-60-30 [email protected]

Latin America Tel: +55-11-3256-8301 Fax: +55-11-3256-4968

Japan Tel: +81-3-5733-6275 Fax: +81-3-5733 6276

@ Internet, worldwide [email protected] www.brainlab.com


Symbols Used in this Manual

1.1 Symbols Used in this Manual

1.1.1 Symbols on the System Hardware Components

Hardware Symbols The following symbols may be found on the system or on accessory devices:

1.1.2 Safety Information

Warning Symbol

Warnings are indicated by a triangular warning symbol. They always contain safety-critical information regarding possible injury, death or other serious consequences associated with misuse of the device.

Caution Symbol

Cautions are indicated by a circular caution symbol. They always contain safe-ty-critical information regarding circumstances that could result in device mal-function, device failure, damage to the device or damage to property.

Symbol Explanation

Class I Type B equipment according to IEC 60601-1

Equipment manufacturer

Attention: Consult accompanying documents

Electrical and electronic equipment should only be disposed of in accordance with statutory regulations. For information regarding the WEEE (Waste Electrical and Electronic Equipment) directive, visit: www.brainlab.com/weee


Introduction

2 Introduction

Overview This user guide describes and gives instructions for performing operations in the service, physics, and communications modes.

Who should read this Book

This manual is for qualified physics and service personnel who perform calibration, maintenance, and similar operations on the Novalis Dose Delivery System.

How this user Guide is organized

Each chapter in this user guide describes a specific category of procedures. In addition, the Appendix contains an alphabetized list of all interlocks. You can read this user guide from start to finish or use the Table of Contents and Index to look up tasks or other information.

Chapter Describes how to ...

2 Use this book

3 Enter, exit, and use service, physics, and communication modes

4 • Set the parameters required for a beam test or exposure• Beam on the Novalis Dose Delivery System outside of a patient treatment• Verify operation of the dosimetry system• Execute a diagnostic self-test for the Novalis Dose Delivery System

5 Configure system values

6 Download and restore service mode configurations

7 Save service mode and physics mode configurations

8 • Back up configurations to diskette• Restore configurations to the hard disk• Back up and view logs

9 Print physics mode configuration data

10 • Override Interlocks• Turn triggers on and off• Turn lights and lasers on and off

11 Display system values, parameters and status

12 Move the Novalis Dose Delivery System and control motions

13 • Select PRO scale• Calibrate PROs

14 Redirect pendant keys to perform keyboard functions

15 Set the service mode communications timeout

16 Set up and run remote diagnostic communications



Using Modes

3 Using Modes

In this Chapter

3.1 Entering Service Mode

Service mode procedures are to be used by qualified maintenance personnel only. Never use these procedures to treat patients. Uninformed or careless maintenance and use of the Novalis Dose Delivery System can expose maintenance and hospital personnel and other persons to hazards that can cause serious injury or death.

Operation of the Novalis Dose Delivery System in service mode by unauthorized persons could cause a machine malfunction that results in damage to equipment, bodily injury, or death. Only persons authorized by the owner should know the service mode password. Take precautions to avoid divulging the password to unauthorized individuals.

Description of Service Mode

Use service mode to maintain and troubleshoot the Novalis Dose Delivery System.

SELECT MAJOR MODE Window

After you finish daily startup of the Novalis Dose Delivery System or when you exit from a major mode, the system displays the SELECT MAJOR MODE window (Figure 1). Use this window to select service mode.

Alphanumeric Service Keyboard

Except when specified otherwise, all the keys you use in service mode are on the alphanumeric service keyboard.

If you get an Error Message

If the system displays a message that this mode is currently unavailable, check that SERVICE is highlighted.

Figure 1: SELECT MAJOR MODE Window

Topic PageEntering Service Mode page 11About the Service Mode Screen page 13Selecting Options and Entering Data page 18Exiting Service Mode page 19Entering and Exiting Physics Mode page 20Operating in Physics Mode page 22About Communications Mode page 23Entering and Exiting Communication Mode page 24


Entering Service Mode

To enter Service Mode

Figure 2: Service Mode Password Window

Figure 3: Example of a Service Mode Screen

Step Action Result1. Use the cursor keys on the

dedicated keyboard to highlight SERVICE, then press ENTER.

The service mode password window appears (Figure 2).

2. Put the alphanumeric service keyboard in a convenient location near the dedicated keyboard.

3. Type the service mode password, then press Enter.orPress Esc to return to the SELECT MAJOR MODE window (Figure 1) without entering service mode.

The password is not shown as you type. Instead, an asterisk (*) appears for each character you enter.If you enter the password correctly, the service mode screen (Figure 3) appears after a short delay.If you enter the password incorrectly, the system displays an error message.

4. If necessary, re-enter the password to continue.

If you do not enter the correct password after four tries, the service mode entry program ends and the SELECT MAJOR MODE window reappears.


Using Modes

3.2 About the Service Mode Screen

General Format The general format of the service mode screen includes:

• Interlock status• Beam-on parameters• Menu bar• Interaction and display area• Message line• Position readouts (PROs)

Interlock Status Area

The interlock status area at the top of the screen lists the interlocks that you can access in service mode. Interlocks that you cannot access through service mode are CKFA, CKTO, CLFA, CLTO, EXT, ORNT, and DSFA. Refer to the Appendix for a complete list of interlocks.

Status of Interlocks The color of the interlock and the background indicate the status of the interlock.

Resetting and overriding Interlocks

To reset and override interlocks use the INTLK/TRIG/LT window (Figure 42 on page 65).

Colors MeaningWhite letters on a light blue background Interlock enabled and not activeWhite letters flashing on a red background Interlock enabled and activeBlack letters on a red background Interlock overridden, but activeBlack letters on a light blue background Interlock overridden, but not active


About the Service Mode Screen

How Interlocks are listed

Table 1 lists interlocks in the order in which they are shown on the screen. Next to each interlock is its type (major, dosimetry, or minor), and a short description of its function. See chapter “Interlocks” on page 101 for more detailed descriptions of the interlocks.

Table 1: Interlocks

Beam-On Parameters

The beam-on parameters area displays:

• Current setup parameters• Real-time exposure parameter values• Current status of the machine

Row Interlock Type Description1 DOS2 Dosimetry Secondary dosimetry channel

DS12 Dosimetry MU1/MU2 mismatchXDP1 Dosimetry Radial excess dose per pulseXDP2 Dosimetry Transverse excess dose per pulseXDRS Dosimetry Excess served dose rateXDR1 Dosimetry Radial excess dose rateXDR2 Dosimetry Transverse excess dose rateSYM1 Dosimetry Radial beam asymmetrySYM2 Dosimetry Transverse beam asymmetryYLD Dosimetry Total beam asymmetryION1 Dosimetry Radial ion chamberION2 Dosimetry Transverse ion chamberLVPS Dosimetry Low voltage power suppliesVAC1 Major Accelerator vacuumFLOW Major Water flowPUMP Major Water level or temperature

2 DOS1 Minor Primary dosimetry channel beam terminationTIME Minor Beam termination on timeCDOS Minor Customer-set dosimetry interlockCMNR Minor Customer-set minor interlockUDRS Minor Served underdose rateUDR1 Minor Radial underdose rateUDR2 Minor Transverse underdose rateDPSN Minor Dose/position mismatch in arcMOTN Minor Unintended motionCOLL Minor Collimator positionIPSN Minor Initial arc positionACC Minor Accessory mismatchVAC2 Minor Accelerator vacuumHWFA Minor Controller-detected hardware failureCTRL Major Control computer failure

3 MOD Minor Modulator reverse voltageHVOC Minor High voltage overcurrentHVCB Minor High voltage circuit breakerSTPS Minor Stand power suppliesGAS Minor Waveguide gas pressureCNF Minor Controller configuration failureTDLY Minor Warm-up time delayPNDT Minor Pendant not in couch holderDOOR Minor Treatment room door openKEY Minor Beam enable key set to DISABLE positionMLC Minor Multileaf collimatorMGNT Minor Magnetron electromagnet


Using Modes

Setup Parameters The setup fields in the beam-on parameters area display the values you enter using the SET UP window (Figure 10 on page 26). Setup values appear as black characters on a light gray background. You must enter the following setup parameters for all treatments:

• MU1 (primary dose in monitor units)• TIME (exposure time)• D/R (dose rate)• MODE (exposure type)

MU1 and MU2 Values

A value for MU2 (secondary dose) appears when you enter the MU1 value:

• If MU1 is greater than or equal to 1000, MU2 is 110% of MU1• If MU1 is less than 10, MU2 is MU1 + 1• If MU1 is less than 1000, MU2 is 110% of MU1 or 25 MU, whichever is less

Dynamic Arc Values

When the mode is dynamic arc, values for the following additional setup parameters appear at the extreme right of the beam-on parameters area.

Real-Time Parameters

The real-time fields in the beam-on parameters area display current exposure data detected by the machine. Real-time values appear as white characters on a black background. The following real-time parameters are continually updated during beam-on:• MU1 (primary dose in monitor units)• MU2 (secondary dose in monitor units)• TIME (exposure time)• D/R (dose rate)• R SYM (relative beam symmetry in the radial plane)• T SYM (relative beam symmetry in the transverse plane)

The code in the ACC IN field represents the accessory currently installed in the machine, not the accessory you select during setup. If no valid accessory is installed, INVALID appears in the field.

Mode Parameters

Dynamic ArcSTRT ANG (start angle)STOP ANG (stop angle)ORG MU (original MUl value for partial treatment)


About the Service Mode Screen

System Status The real-time system status appears in the space below the R SYM and T SYM readouts. System status codes appear as black characters on a light gray background except for BEAM ON. BEAM ON appears as blinking white letters on a red background. The following codes indicate the current status of the machine.

Status Description Notes STANDBY Indicates the system is in standby

mode. Only the console, vacuum, and water cooling systems are powered.

The system enters standby mode whenever a major interlock is activated or the POWER keyswitch on the console electronics cabinet is turned to STANDBY.

TDLY (time delay)

Indicates the system is waiting for the machine to warm up after the POWER keyswitch is turned to ON.

The system displays the TDLY status marker and the delay time remaining until the TDLY interlock is deactivated

ON Indicates the system is in the on mode. All machine systems are powered.

The system enters on mode when the time delay (TDLY) ends, provided no major interlocks are active.

READY Indicates the system is in on mode and no interlocks are active.

BEAM ON

Indicates the system is in the beam-on state.

The system enters the beam-on state when:• it is in the ready state• the DISABLE/ENABLE key-

switch is turned to ENABLE• valid setup values have been

entered and• the BEAM ON function

(page 31) is activated.


Using Modes

Menu Bar Select service mode options from the menu bar. Each menu bar option controls a group of functions. When you select an option, the system displays the functions in a selection window. When you first enter service mode, the SET UP option in the menu bar is highlighted. Table briefly describes each of the service mode options.

Table 2: Menu Bar Options

Interaction and Display Area

• The system displays selection windows, data entry boxes, and various kinds of process data in the center of the screen.

• When you select an option from a window, the system may display a data box with one or more input fields and sometimes an additional window with more choices. See page 18 for the general procedures to select functions and enter data.

Message Line The system displays error and help messages below the interaction and display area. These messages provide additional instructions for data entry and also give error explanations.

Position Readouts The position readout area provides a real-time digital display of the positions of each motor axis of the Novalis Dose Delivery System. This display is the same as the position readout displays on the morning checkout, clinical, and special procedures mode screens. To change the scale in which the readouts are displayed, use the Select PRO scale option in the CALIB window (Figure 21 on page 32).

Use this option... To...BEAM CTRL Initiate the beam when the machine is in the ready state

SET UP• Set the parameters required for a beam test exposure including mode,

repetition rate (dose rate), dose, time, and accessories• Reset parameters for another test

INTLK/TRIG/LT

• Override and reset interlocks• Control trigger delays• Disable system triggers• Switch various lights on and off

DISPLAY Display various types of process data, parameters, readings, and status

MOTOR Move the axes of the treatment couch and the Novalis Dose Delivery System in either manual or automatic mode

CALIB• Verify operation of the dosimetry system• Calibrate the PRO system and choose the PRO scale• Save calibration values to the hard disk

UTILS

• View status of input/output (I/0) data• Change the value of the communications timeout• Run controller diagnostics• Restore a service mode configuration• Activate keys on the hand pendant• Test the mechanism that reads accessory codes

QUIT Exit service mode


Selecting Options and Entering Data

3.3 Selecting Options and Entering Data

General Description

The general procedure to select service mode options is the same, whether you want to display a selection window from the menu bar, choose an option from a window, or select a field for data entry.

About the Highlight The first time you display a window or data entry field during a service mode session, the system highlights the top choice.When you redisplay a window or data entry field during a service mode session, the highlight is in the same position it was when you last exited the window or box.

To move the Highlight

To display a Window

Use the Enter key or down arrow at a menu bar option to display the associated window. For example, highlight SET UP on the menu bar, then press Enter or the down arrow key to display the SET UP window.

To display the next or previous Window

Press the left or right arrow from a menu bar window to display the adjacent window. For example, in the DISPLAY window, press the right arrow key to display the MOTOR window.You cannot display the BEAM CTRL window in this way. You must select it directly from the menu bar.

To select Options or Fields

To select Options by Letter

You can select options in a single step by typing the first letter of the option name (in uppercase or lowercase). For example, type the letter S when the highlight is in the menu bar to display the SET UP window. From there, type the letter D to display the Dose option data entry box. You do not have to press Enter.

Selection Sequence No particular sequence is usually required when you select options. However, some options require that you make a series of additional choices or data entries in order to complete the function. For example, when you select the Set all option from the SET UP window, all the setup parameter windows and data boxes appear in sequence.

Key DescriptionLeft arrow Moves the highlight from the option at the far left to the option at the far right.Right arrow Moves the highlight from the option at the far right to the option at the far left.Up arrow Moves the highlight from the option at the top to the option at the bottom.Down arrow Moves the highlight from the option at the bottom to the option at the top.Home Moves the highlight to the top or top left option.End Moves the highlight to the bottom or bottom right option.Esc Cancels an entry and normally returns the highlight to the menu bar.

Step ActionUse the arrow keys to highlight the option or data entry field.Press Enter to select the highlighted option or to accept the data entered in the field.


Using Modes

To enter Data

3.4 Exiting Service Mode

General Description

Use the QUIT option on the menu bar to exit service mode and return to the SELECT MAJOR MODE window. When you exit service mode, the system discards any changes you made to configuration data unless you save them to the computer hard disk. No interlocks remain overridden, and the console gun delay reverts to its original value.

To exit Service Mode

Step Action Result1. Highlight the data entry field. The first numeric keystroke clears the

old value from the field.2.

Enter the data, then press Enter.

• The system accepts the value.• The highlight moves to the next

field. The system checks the value.• If the value is out of range, the sys-

tem displays an error message. • The value you enter becomes the

default for the field during the cur-rent service mode session (until you change the entry).

3. If the value is out of range, press Del to clear the value.orPress the backspace key to erase characters.orPress Esc to cancel the entry and keep the original value.

Step Action Result1. Select the QUIT option, then press Enter. The system prompts you to confirm your

request to exit.2. Select NO, then press Enter.

orThe system clears the window and the highlight returns to the menu bar.

Select YES, then press Enter.If you made changes to the configuration data during the current service mode session, the system prompts you to save these changes. Go to step 3.

3.To save the changes, select NO, then press Enter.

• The highlight returns to the menu bar.• To save the configuration data, select

the Write data to disk option from the CALIB window (Figure 21 on page 32).

4. To discard the changes you made to the configuration data during the session, select YES.

After a short delay (less than 1 minute), the system displays the SELECT MAJOR MODE window (Figure 1).


Entering and Exiting Physics Mode

3.5 Entering and Exiting Physics Mode

Configuring the Novalis Dose Delivery System in physics mode by unauthorized persons could cause a machine malfunction that results in damage to equipment, bodily injury, or death. Only persons authorized by the owner should configure the Novalis Dose Delivery System in physics mode. Take precautions to avoid divulging the password to unauthorized individuals.

Description of Physics Mode

The hospital physicist uses physics mode to configure various readouts and parameters to match the conventions of the hospital. Physics mode also provides file management utilities to back up configuration files and logs. You must enter a password to use physics mode.

SELECT MAJOR MODE Window

After you finish daily startup of the Novalis Dose Delivery System or when you exit from a major mode, the system displays the SELECT MAJOR MODE window (Figure 1). Use this window to select physics mode.

If You Get an Error Message

If the system displays a message that this mode is currently unavailable, check that:

• PHYSICS is highlighted• The POWER keyswitch is in the ON position

To enter Physics Mode Step Action Result

1. Use the cursor keys on the dedicated keyboard to highlight PHYSICS, then press ENTER.

The physics mode password window appears (Figure 4).

2.Type the physics mode password, then press ENTER.orPress F1 to return to the SELECT MAJOR MODE window without entering physics mode.

• The password is not shown as you type. Instead, an asterisk (*) appears for each charac-ter you enter.

• If you enter the password correctly, the SELECT OPTION window (Figure 5) appears.

• If you enter the password incorrectly, the sys-tem displays an error message.

3.If necessary, re-enter the password to continue.

If you do not enter the correct password after four tries. the physics mode entry program ends and the SELECT MAJOR MODE window (Figure 1) appears.


Using Modes

Figure 4: Physics Mode Password Window

Figure 5: SELECT OPTION Window

Keys you use in Physics Mode

These keys become available after you select CONFIGURATION in the SELECT OPTION window.

To exit Physics Mode

If you changed Configuration Data

If you made any changes to the physics configuration data, the system also displays the warning message:

Configuration Datum Has Been Modified. Changes Not Saved Will Be Lost!!

If you want to save the configuration data, do not exit. Select NO or press SETUP to return to the SELECT CONFIGURATION window (Figure 6), then follow the procedure to save the data.

If you save a new Password

If a new physics password was saved, the system displays:

WARNING: Physics Password Has Been Modified!!

Use this key… To...F1 EXIT Exit physics modeF5 SAVE Save configuration data to diskF6 PRINT Print copies of the current data

Step Action Result1. Press F1 EXIT. The system prompts you to confirm

the exit.2. Select YES, then press ENTER. The SELECT MAJOR MODE

window (Figure 1) appears.orSelect NO to cancel.


Operating in Physics Mode

Make sure that you know the new physics password before you exit physics mode.

Figure 6: SELECT CONFIGURATION Window

3.6 Operating in Physics Mode

When you enter Physics Mode

When you enter physics mode, the SELECT OPTION window (Figure 5) appears.

To select an Option Highlight your choice, then press ENTER.

SELECT CONFIGURATION Window

If you select CONFIGURATION, the SELECT CONFIGURATION window appears (Figure 6).

Summary of CONFIGURTION Options

SELECT UTILITY Window

If you select UTILITIES, the SELECT UTILITY window appears (Figure 7).

Summary of UTILITIES Options

Option Use See PageDEFAULT DOSE RATE

Set the default dose rate for fixed or the maximum allowed dose rate for dynamic treatments page 36

TIME FACTOR Set the time adjustment factor the system uses to calculate treatment times page 37

PASSWORDS Specify the dosimetry, physics and service passwords page 38

MAXIMUM DOSES Set the maximum dose warning level for each treatment type page 39

MORNING CHECKOUT Configure the default morning checkout treatments page 40

CUSTOMER MINOR Activate or deactivate a customer-defined interlock page 45

DATE FORMAT Set the convention for displaying the date page 46

TIME FORMAT Choose either a 24-hour or 12-hour clock for displaying the time page 47

RV INTERFACE Set the machine for use with a record and verify system (Novalis Treat) page 49

Option Use See Page SET DATE Set the current date in the system page 47SET TIME Set the current time in the system page 48BACKUP CONFIGURATION Back up the configuration files onto diskette page 56

RESTORE CONFIGURATION Copy a backed up version of the configuration files onto hard disk page 57

BACKUP EVENT LOGS Back up event logs onto diskette page 58BACKUP CHECKOUT LOGS Back up morning checkout logs onto diskette page 59


Using Modes

Figure 7: SELECT UTILITY Window

3.7 About Communications ModeThe morning checkout, dynamic beam delivery logs, and event logs available through communications mode are intended for service personnel who evaluate machine performance trends. Interpreting the data in these logs requires considerable service experience.

General Description

Use communications mode to display morning checkout logs, dynamic beam delivery logs, and event logs on the console monitor. To do this, the system translates machine data stored on the console computer hard disk into a readable form.

In addition, remote diagnostic communications allows BrainLAB service personnel to access the logs from a remote location.


Except when specified otherwise, all the keys you use in communications mode are on the alphanumeric service keyboard.

Morning Checkout Logs

Morning checkout logs are records of the machine validation checks performed during morning checkout. The morning checkout logs you can display are in the same format as the printout you can request at the end of the morning checkout procedure. For morning checkout procedures, refer to the Clinical User Guide for the Novalis Dose Delivery System. For examples of morning checkout logs, refer to the Reference Guide for the Novalis Dose Delivery System.

Dynamic Beam Delivery Logs

Dynamic beam delivery logs are similar to morning checkout logs. They are records of the machine settings and actual values after a dynamic arc treatment. These logs are created only after delivering such a treatment in either morning checkout or clinical mode. For examples of dynamic beam delivery logs, refer to the Reference Guide for the Novalis Dose Delivery System.

Event Logs Event logs are records of the status of the Novalis Dose Delivery System when an event occurred. An event is usually the assertion of an interlock. For examples of event logs, please refer to the Reference Guide for the Novalis Dose Delivery System.


Entering and Exiting Communications Mode

3.8 Entering and Exiting Communications Mode

To select Communications Mode

After you finish daily startup of the Novalis Dose Delivery System or when you exit from a major mode, the system displays the SELECT MAJOR MODE window (Figure 1). Use the cursor keys on the dedicated keyboard to highlight COMMUNICATIONS, then press ENTER.

Error Messages If the communications software is not yet installed on your system, the following message appears:

This Major Mode is Currently Unavailable

If you have Modem Connect

If you have the optional remote diagnostic communications feature (Modem Connect), the system displays the Modem Connect selection window (Figure 8). Use this window to choose between viewing logs or setting up for communications. Refer to chapter “Using Remote Communications” on page 97 for the procedures to use remote diagnostic communications. Refer to chapter “Working with Configurations” on page 55 for the procedures to view event and checkout logs.

If you do not have Modem Connect

If you do not have the remote diagnostic communications option, you go directly into the translator and the system displays the Translator selection window (Figure 9). Use this window to select logs to view or to quit communications mode. Refer to chapter “Working with Configurations” on page 55 for the procedures to view event and checkout logs.


Once you enter communications mode, only the alphanumeric service keyboard is active. You cannot use the dedicated keyboard.

To quit Communications Mode

Figure 8: Modem Connect Selection Window

Figure 9: Translator Selection Window

Step Action Result1. Press Esc until you return to a menu.

2.Highlight Quit, then press Enter.

The SELECT MAJOR MODE window (Figure 1) appears.


Testing

4 Testing

The Novalis Dose Delivery System can produce a lethal dose of radiation in a very short time. Any personnel exposed to that radiation can receive a harmful dose that can result in serious illness or death. When the system is in service mode, no one is allowed in the treatment room with the beam on.

In this Chapter

About this Chapter The options described in this chapter are available in service mode. Refer to chapter “Using Modes” on page 11 for general procedures to enter and exit service mode.

4.1 Using the SET UP Option

General Description

Use the SET UP menu bar option in service mode to set the parameters required for a beam test or exposure. Parameters include:

• Mode (page 26)• Energy (page 28)• Repetition rate (page 29)• Dose (page 29)• Time (page 30)• Accessories (page 30)

SET UP Window When you select the SET UP menu bar option, the SET UP window (Figure 10) appears.

Selecting Options You can select options individually in any order from the SET UP window, or you can use the Set all option to automatically cycle through them sequentially.

The Set All Option The Set all option sequentially displays each of the setup option windows for you to enter data. In this way, you do not have to choose each option separately from the SET UP window. If you intend to beam on, using Set all ensures that you set all required parameters.

Topic PageUsing the SET UP Option page 25Setting the Mode page 26Setting Mode for Dynamic Treatments page 26Setting the Repetition Rate page 29Setting the Dose page 29Setting the Time page 30Selecting Accessories page 30Resetting Parameters for Another Test page 31Beaming On page 31Testing the Dosimetry System page 32Executing the Diagnostic Self-test page 32


Setting the Mode

If the System does not accept SET UP Parameters

If the system does not accept entries for the SET UP parameters, check the status indicator in the beam-on parameters area (page 15). When the machine is in standby mode, the system ignores setup commands and does not display error messages.

Figure 10: SET UP Window

4.2 Setting the Mode

General Description

Use the Mode option to select the treatment type. You can select:• Fixed• Arc

SELECT MODE Window

When you select the Mode option in the SET UP window, the SELECT MODE window (Figure 11) appears.

When you choose a Mode

The mode you choose appears in the MODE setup field in the beam-on parameters area (page 14). Before you choose a mode, INVALID is displayed.

To set the Mode To set the mode. highlight the mode in the SELECT MODE window, then press ENTER. For arc mode, you must supply additional information. See page 27 for the procedure to set up arc mode.

Figure 11: SELECT MODE Window

4.3 Setting Mode for Dynamic Treatments

Dynamic Treatment Modes

Arc is a dynamic beam delivery (DBD) mode in which the gantry motor axis moves during beam-on. The system control software continuously adjusts both the dose rate and the speed of the dynamic motor axis.

You cannot select arc mode while the PRO is displayed in raw scale. To change the PRO scale, use the Select PRO scale option in the CALIBRATION window (page 32).

In partial treatment mode you can resume dynamic treatments that are interrupted before completion, even if other treatments are performed in the meantime.

When you select arc mode, you must enter additional setup parameters as part of the Mode option to define the unique elements for dynamic exposures.


Testing

Treatment Modes After you select arc mode, the SELECT TRMT MODE window (Figure 12) appears. Use this window to select a treatment mode:

• Select New Treatment when you are setting up a complete treatment.• Select Partial Treatment when you are resuming an interrupted treatment. The system

later prompts you to enter original MU as part of the Dose option (page 29).

Figure 12: SELECT TRMT MODE Window

ENTER ARC THERAPY DATA Window

When you choose arc mode and the treatment mode, the ENTER ARC THERAPY DATA window (Figure 13) appears. Use this window to specify the gantry start and stop angles for the treatment.

Arc Mode Parameters

The numbers in parentheses show the range of valid entries for the normal gantry range. Valid entries in the extended range for start angle are from 355.OE to 359.9E and from OE to 5.OE Varian scale, and between 175.OE and 184.9E IEC scale. Valid entries in the extended range for stop angle are OE Varian scale and 180E IEC scale.

To specify an angle in the extended range, enter the letter E in the field to the right of the angle. The console software determines the arc direction from the values you enter.

For a 360-degree rotation, enter the start angle in the extended range and enter the same value for the stop angle in the normal range. For example:

If you use 0 Varian scale or 180 IEC scale as the start and stop angles for a 360-degree rotation, the direction of rotation is determined by which of the angles is in the extended range. For example:

Figure 13: ENTER ARC THERAPY DATA Window

Angle Varian IECSTART ANGLE 355E 185ESTOP ANGLE 355 185 = counterclockwiseSTART ANGLE 5E 175ESTOP ANGLE 5 175 = clockwise

Angle Varian IECSTART ANGLE 0 180STOP ANGLE 0E 180E = counterclockwiseSTART ANGLE 0 180STOP ANGLE 0E 180E = clockwise


Setting the Energy

To set up for Arc Mode

4.4 Setting the Energy

General Description

Use the Energy option to select the X-ray energy.

Using the Energy Option

When you select the Energy option from the SET UP window, the SELECT ENERGY window (Figure 14) appears.

The highlight is on the last energy you selected. If you have not set energy in the current service mode session, the item NO MODE is highlighted.

The energy you select appears in the ENERGY setup field in the beam-on parameters area (page 14).

To select an Energy To select an energy:• Highlight the energy and press Enter.

or

• Enter the index number that precedes the energy you want (for example, l for 6 MV) and press Enter.

Figure 14: SELECT ENERGY Window

Step Action Result1. Select the SET UP menu bar option on the

service mode screen (Figure 3), then press Enter.

The SET UP window (Figure 10) appears.

2. Select Mode, then press Enter. The SELECT MODE window (Figure 11) appears.

3. Select Arc, then press Enter. The SELECT TRMT MODE window (Figure 12) appears.

4. Select the treatment mode (new or partial), then press Enter.

The ENTER ARC THERAPY DATA window (Figure 13) appears.

5.

Enter the start and stop angles, then press Enter.

• For a partial treatment. enter the start and stop angles for the original complete treatment you want to resume.

• The angles you enter appear in the STRT ANG and STOP ANG setup fields in the beam-on parameters area.

6. Press Enter or Esc. The window closes.


Testing

4.5 Setting the Repetition Rate

General Description

Use the Rep rate (repetition rate) option to control the dose rate output.

Using the Rep Rate Option

• When you select Rep rate from the SET UP window, the SELECT REP RATE window (Figure 15) appears.

• When you select a repetition rate, the corresponding dose rate appears in the D/R (dose rate) setup field in the beam-on parameters area (page 14).

To select a Repetition Rate

To select a repetition rate, highlight the rate and press ENTER.

or

Enter the index number that precedes the rate you want (for example, l for 160 MU/min) and press ENTER.

Figure 15: SELECT REP RATE Window

4.6 Setting the Dose

General Description

Use the Dose option to enter the monitor units for the current exposure and the original monitor units for a partial dynamic exposure.

Using the Dose Option

When you select Dose from the SET UP window, the ENTER MONITOR UNITS window (Figure 16) appears.If this is a partial dynamic treatment, the ENTER ORIGINAL MONITOR UNITS window (Figure 17) appears after you enter the dose for the current exposure.For a partial treatment, enter the MU remaining from the interrupted exposure in the ENTER MONITOR UNITS window. Enter the dose intended for the original, interrupted exposure in the ENTER ORIGINAL MONITOR UNITS window.The numbers in parentheses show the valid range of entries. The default value is the last dose you entered. If you have not yet set dose during the current service mode session, the default is 1.The monitor unit value you enter for the dose appears in the MU 1 setup field in the beam-on parameters area (page 14).

The monitor unit value you enter for the original dose appears in the ORG MU setup field in the beam-on parameters area (page 14).

Figure 16: ENTER MONITOR UNITS Window

Figure 17: ENTER ORIGINAL MONITOR UNITS Window


Setting the Time

4.7 Setting the Time

General Description

Use the Time option to enter the exposure time.

Using the Time Option

When you select Time from the SET UP window, the ENTER TIME window (Figure 18) appears.

The numbers in parentheses show the valid range of entries.

The decimal places are optional.

For fixed treatments, the default value is the last exposure time you entered. If you have not yet set time during the current service mode session, the default is 0.01. For dynamic treatments, the default value is the calculated value.

The time you enter appears in the TIME setup field in the beam-on parameters area (page 14).

Figure 18: ENTER TIME Window

4.8 Selecting Accessories

General Description

Use the Accessories option to select a collimator insert for the exposure.

Using the Accessories Option

When you select Accessories from the SET UP window, the select insert window (Figure 19) appears. Use this window to select either a collimator insert or NO ACCY.

SELECT insert Window

Each item in the window is either a standard collimator.

The highlight is on the last accessory you selected.

When you make a selection from this window, it is compared to the collimator actually installed on the machine. If there is a mismatch, the control system activates the ACC interlock.

The entry in the ACC IN field in the beam-on parameters area page 15 is the collimator installed, not the collimator you select at the console.

Figure 19: SELECT Insert Window

To select a collimator

To select a collimator:

• Enter the index number that precedes the collimator and press ENTER.


Testing

4.9 Resetting Parameters for Another Test

General Description

Use the Perform repeat option after an exposure to reset the same parameters for another exposure.

4.10 Beaming On

General Description

Use the BEAM CTRL menu bar option in service mode to initiate the beam when the machine is in the ready state.

When you select BEAM CTRL and the beam is off, the CONFIRM BEAM ON window (Figure 20) appears.

If the beam is already on, selecting BEAM CTRL terminates the beam.

The highlight is always on NO when this window appears.

To turn on the Beam

To turn on the beam, select YES. To exit without starting the beam, select NO or press Esc.

When you Beam-On

When you select YES to beam on, the system checks the setup values. If any value has not been set, the system displays a message with the name(s) of the parameters not set. For example:

BEAM ON did NOT Occur! CAUSE: Dose Not Set

If you entered all the setup values correctly, the Novalis Dose Delivery System produces beam. To indicate that the beam is on, the system flashes the words BEAM ON in white letters on a red background in the system status area (page 16).

While the beam is on, the accumulated dose, elapsed time, current dose rate, and beam symmetry parameters appear in the beam- on parameters area (page 14).

Selecting other Options during Beam-On

You can select other menu bar options, such as INTLK/TRIG/LT and DISPLAY, during beam on and change most parameters. However, you cannot change any of the SET UP parameters.

To terminate the Beam

To terminate the beam, select the BEAM CTRL option again. No window appears. The fastest way to select the option is to press the letter B. You can also terminate beam by pressing the BEAM OFF button on the dedicated keyboard.

Figure 20: CONFIRM BEAM ON Window


Testing the Dosimetry System

4.11 Testing the Dosimetry System

General Description

Use the CALIB menu bar option in service mode to verify the operation of the dosimetry system. When you select CALIB, the CALIBRATION window (Figure 21) appears.

DOSIMETRY Window

When you select the Calibrate dosimetry option from the CALIBRATION window, the DOSIMETRY window (Figure 22) appears.

To test Dosimetry Integration

To test the dosimetry integration system, highlight the Integration cal option and press ENTER. In this test, a test current is passed through the dosimetry integrator system to simulate a radiation exposure. The injected current should result in MU1 and MU2 readings between 100 and 109 within a time interval of 0.1 minute. This function sets ION1 and ION2 parameters.

To test Dose Counters and Timers

To test the dose counters and timers, highlight the Dose Count check option and press ENTER. This test verifies that the dose counter/timers can count up to the set MU and the set time. It also proves the operation of the dose rate interlocks.

Figure 21: CALIBRATION Window

Figure 22: DOSIMETRY Window

4.12 Executing the Diagnostic Self-test

General Description

Use the UTILS menu bar option in service mode to execute diagnostic self-tests. When you select UTILS, the UTILITIES window (Figure 23) appears.

To execute the Self-Test

To execute the self-test, select the Execute self-test option from the UTILITIES window.

During the Self-Test

The control software performs the self-test. The system displays:

Executing Controller Self-Test Please Wait...

If the Self-Test is successful

If the diagnostic tests finish successfully, the system displays:

Self-Test Completed Successfully


Testing

If the Self-Test is not successful

If a test is not successful, the system displays a DIAGNOSTIC FAILURE window with the reason the test failed, an integer address, and test data. Figure 24 lists the possible reasons for failure that may appear in the window.

Error Messages If the POWER key on the console electronics cabinet is in the ON position, the system displays:

Self-Test Not Executed Power Key was ON.

Figure 23: UTILITIES Window

Diagnostic File Dump

The system creates a diagnostic file dump (event log) when a self-test is unsuccessful. This dump is a record of the system status, including treatment settings, interlocks, position readouts, analog meters, digital I/0, and accessory data. Event logs are stored on the hard disk. You can view event logs in communications mode (page 60).

Figure 24: Diagnostic Error Messages

Messages8254 counter not working.8259 interrupt controller failure.9513 counter not working (address: x*).9519 interrupt controller failure (board: d, interrupt level: d*). Interlock relay failure (faulty interlock port address: x*). Analog/Digital converter failure.Digital/Analog converter failure.Watchdog timer failure. Could be circuit, IRQ 1 line. D/A/D loopback test (address: d, test data: d*).Beam off interrupt error.Dosimetry reset interrupt error.PRO reference voltage error.Power supply error(+15).Power supply error(-15).Power supply error(+12).Power supply error(-12).Power supply error(+24).Power supply error(+5).Controller Self-Test timed out.Unknown error code: d, byte1: d, byte2: d*. *d is a byte in decimal, x is a byte in hex



Configuring System Values

5 Configuring System Values

Operation of the Novalis Dose Delivery System in physics mode by unauthorized persons could cause a machine malfunction that results in damage to equipment, bodily injury, or death. Only persons authorized by the owner should operate the Novalis Dose Delivery System in physics mode. Take precautions to avoid divulging the password to unauthorized individuals.

In this Chapter

About this Chapter The configuration options described in this chapter are available in physics mode. Refer to chapter “Using Modes” on page 11 for general procedures on entering and exiting physics mode.

Topic PageConfiguring the Default Dose Rate page 36Configuring the Default Time Factor page 37Changing Passwords page 38Configuring Maximum Doses page 39Using the Morning Checkout Option page 40Adding a Treatment page 41Modifying a Treatment page 42Removing a Treatment page 43Retrieving a Treatment page 44Configuring Customer-Defined Interlocks page 45Configuring Date Format page 46Setting the Current Date page 47Configuring Time Format page 47Setting the Current Time page 48Configuring the RV Interface page 49


Configuring the Default Dose Rate

5.1 Configuring the Default Dose Rate

General Description

Use the DEFAULT DOSE RATE option in the SELECT CONFIGURATION window to set the default dose rate for fixed and dynamic treatments.

When you can change the Default Dose Rate

You can change the default dose rate in predetermined monitor unit/minute (MU/min) increments anytime during console setup.

DEFAULT DOSE RATE Window

When you se lec t the DEFAULT DOSE RATE op t ion f rom the SELECT CONFIGURATION window (Figure 6), the DEFAULT DOSE RATE window (Figure 25) appears with the highlight on the current default.

To exit the Window without storing Changes

To exit this window without storing a change, press F1 ABORT:

Figure 25: DEFAULT DOSE RATE Window

To configure the Default Dose Rate

Step Action Result1. Select CONFIGURATION in the SELECT

OPTION window (Figure 5), then press ENTER.

The SELECT CONFIGURATION window (Figure 6) appears.

2. Select DEFAULT DOSE RATE, then press ENTER.

The DEFAULT DOSE RATE window (Figure 25) appears.

3. Highlight the dose rate you want to change.

4. Press F5 DR DOWN or F6 DR UP to change the default dose rate in predetermined increments.

5.When you have made all the changes you want, press F2 DONE.

• The system stores the changes while you are in physics mode.

• The SELECT CONFIGURATION window reappears.

6. To save the changes permanently, use F5 SAVE before you exit physics mode (page 54).



5.2 Configuring the Default Time Factor

General Description

Use the TIME FACTOR option in the SELECT CONFIGURATION window to configure the default time factor.

Definition of Time Factor

The time factor is a number the system uses to calculate the default value for time. The default appears in the TIME field when you enter treatment parameters.

How the System calculates the Default Time

Time Factor Values The time factor is limited to a range of 1.00 to 1.30, providing for an excess of from 0 percent to 30 percent over the theoretical time. You can enter a time factor of 0 to disable the calculation. In this case, no default appears and the operator must enter a time value manually.

If you enter an invalid Time Factor

If you enter an invalid time factor, an error message appears.

You must enter a new value to continue.

ENTER FACTOR Window

When you select the TIME FACTOR option from the SELECT CONFIGURATION window (Figure 6), the ENTER FACTOR window (Figure 26) appears.

To exit the Window without storing Changes

To exit this window without storing a change:

• Press CLEAR twice.or

• Press SET UP.

To configure the Time Factor

Figure 26: ENTER FACTOR Window

Phase What the System Does1. Calculates the theoretical length of time a treatment should take, based on monitor

units and dose rate, plus additional parameters for dynamic treatments (for example, start and stop angles for arc treatments.

2. Multiplies the resulting value by the time factor to yield the default time.

3. For dynamic treatments, adds an additional 0.1 minute to the default time.




2. Select TIME FACTOR, then press ENTER.

The ENTER FACTOR window (Figure 26) appears.

3.Enter the new time factor value, then press ENTER.

• The system stores the change while you are in physics mode.


• Use the format #.##. The decimal place is optional.• Valid entries are 0.00 and a range of 1.00 to 1.30.

4. To save the change permanently, use F5 SAVE before you exit physics mode (page 54).


Changing Passwords

5.3 Changing Passwords

General Description

Use the PASSWORDS option in the SELECT CONFIGURATION window to change any of the four passwords required when you operate the Novalis Dose Delivery System.Passwords are required to:

• Clear dosimetry interlocks• Enter physics mode• Enter service mode

ENTER PASSWORDS Window

When you select the PASSWORDS option in the SELECT CONFIGURATION window (Figure 6), the ENTER PASSWORDS window (Figure 27) appears. The current passwords appear in the window.

To cancel a Change The only way to cancel a change you make to a password is to manually change it back to the original entry (by pressing CLEAR and retyping it) before you leave the window.

Figure 27: ENTER PASSWORDS Window

To change a Password Step Action Result

1. Select CONFIGURATION in the SELECT OPTION window (Figure 5), then press ENTER.


2. Select PASSWORDS, then press ENTER. The ENTER PASSWORDS window (Figure 27) appears.

3. Select the password you want to change.

4. Type the new password.Each password must be a four-digit number from 0000 to 9999.

5. When you finish making all changes, press SET UP.






5.4 Configuring Maximum Doses

General Description

Use the MAXIMUM DOSES option in the SELECT CONFIGURATION window to configure the maximum dose for each type of treatment.

Definition of Maximum Dose

Maximum dose levels are limits above which you are not normally allowed to operate in the clinical and special procedures modes.

Maximum Dose Warning Messages

If the operator enters a dose higher than the maximum configured in physics mode, a warning message appears on the monitor. The operator must confirm that the higher dose is valid in order to override the maximum dose limit (up to the actual maximum dose the system can deliver). The maximum dose values allowed are:

ENTER MAXIMUM DOSES Window

When you select the MAXIMUM DOSES option in the SELECT CONFIGURATION window (Figure 6), the ENTER MAXIMUM DOSES window (Figure 28) appears. The current and maximum dose levels appear in the window.

To cancel a Change To cancel a change you make:

• Manually change it back to the original entry (by pressing CLEAR and retyping it) before you leave the window.

or

• Press F1 ABORT.

To configure maximum Doses

Figure 28: ENTER MAXIMUM DOSES Window

Type of Treatment Monitor UnitsFixed X 999Arc X 999




2. Select MAXIMUM DOSES, then press ENTER.

The ENTER MAXIMUM DOSES window (Figure 28) appears.

3. Select the dose you want to configure.

4.

Type the new maximum dose.

• If you enter an invalid value for any exposure, the system displays an error message.

• Press CLEAR and enter a new value to continue.

5.After you have made all changes, press F2 DONE from any line.





Using the Morning Checkout Option

5.5 Using the Morning Checkout Option

General Description

Use the MORNING CHECKOUT option in the SELECT CONFIGURATION window to set up the default morning checkout treatments. Use this option to:

• Add a treatment (page 41)• Modify a treatment (page 42)• Remove a treatment (page 43)• Retrieve a treatment you removed (page 44)

SELECT OPTION Window

When you select MORNING CHECKOUT from the SELECT CONFIGURATION window (Figure 6), a summary of the current default morning checkout treatments appears with the SELECT OPTION window (Figure 29) below them.

How to move around the Window

If more than eight checkouts are required, press F3 NEXT PAGE to display the second page.

Suggested Sequence

If you make changes to the defaults, it is best to maintain the following sequence so that power demand increases gradually:

• Fixed beam• Arc

Canceling an Action

To cancel an action such as adding or modifying a treatment, press SET UP to return to the SELECT OPTION window.

Figure 29: SELECT OPTION Window



5.6 Adding a Treatment

General Description

Use the ADD A TREATMENT option in the SELECT OPTION window to add a treatment to the default morning checkout treatments.

Treatment Parameters and Values

The system displays a series of windows, similar to those you use to set up a treatment in the clinical mode. Move through the windows and make your selections. For details about the treatment parameter windows and values, refer to the Clinical User Guide for the Novalis Dose Delivery System.

For Arc Treatments The system displays an additional window for you to enter the START ANGLE and STOP ANGLE.

To add a Treatment



• The SELECT CONFIGURATION window (Figure 6) appears.

2. Select MORNING CHECKOUT, then press ENTER.

• The SELECT OPTION window (Fig-ure 29) appears.

3. Select ADD A TREATMENT, then press ENTER.

• The system prompts you to select the row for the new treatment.

4.Move the black box to the row where you want to add the treatment, then press ENTER.

• Eight empty rows appear at the top of the screen. The black box is on the first row.

• The SELECT TREATMENT win-dow (Figure 30) appears.

5.

Move through the windows and make your selections, pressing ENTER each time.

• When you press ENTER from the last window:


• The SELECT OPTION window reap-pears.

6. When you finish making changes, press F1 EXIT.

The SELECT CONFIGURATION window reappears.



Modifying a Treatment

5.7 Modifying a Treatment

General Description

Use the MODIFY A TREATMENT option in the SELECT OPTION window to modify a default morning checkout treatment.

Treatment Parameters and Values

The system displays a series of windows, similar to those you use to set up a treatment in the clinical mode. Move through the windows and make your selections. For details about the treatment parameter windows and values, refer to the Clinical User Guide for the Novalis Dose Delivery System.

Changing Parameters

• To leave a parameter unchanged, press ENTER.• To change a parameter, highlight a different choice or type a new number, as

appropriate, then press ENTER.

Figure 30: SELECT TREATMENT Window

To modify a Treatment Step Action Result




The SELECT OPTION window (Figure 29) appears.

3. Select MODIFY A TREATMENT, then press ENTER.

The system prompts you to select the treatment you want to modify.

4.Move the black box to the treatment, then press ENTER.

• Eight new rows appear at the top of the screen. The treatment to modify is in the first row.

• The SELECT TREATMENT win-dow (Figure 30) appears.

5.

Move through the windows and make your selections, pressing ENTER each time.

• When you press ENTER from the last window:

• The system stores any changes while you are in physics mode.







5.8 Removing a Treatment

General Description

Use the REMOVE A TREATMENT option in the SELECT OPTION window to remove a default morning checkout treatment.

To remove a Treatment Step Action Result





3. Select REMOVE A TREATMENT, then press ENTER.

The system prompts you to select the treatment you want to remove.

4.Move the black box to the treatment, then press ENTER.

The system:• Highlights the treatment you

selected.• Prompts you to confirm the removal.

5. To remove the treatment, select YES, then press ENTER.orTo cancel the removal, select NO, then press ENTER.

• The system stores any change while you are in physics mode.






Retrieving a Treatment

5.9 Retrieving a Treatment

General Description

Use the ADD A TREATMENT option in the SELECT OPTION window to retrieve a treatment you removed. The last treatment you remove is stored in memory and can be retrieved anytime before you leave physics mode. You can:

• Retrieve a treatment you removed by mistake• Remove and then retrieve a treatment to change the order of the default treatments

To retrieve a Treatment Step Action Result





3. Select ADD A TREATMENT, then press ENTER.

The system prompts you to select the row for the new treatment.

4. Move the black box to the row where you want the treatment, then press ENTER.

If a treatment was removed, the system asks you to confirm adding the treatment.

5.To add the treatment, select YES, then press ENTER.

orSelect NO, then press ENTER.

• The system stores any changes while you are in physics mode.


The SELECT OPTION window reap-pears.






5.10 Configuring Customer-Defined Interlocks

General Description

Use the CUSTOMER MINOR option in the SELECT CONFIGURATION window to activate or deactivate customer-defined interlocks for special functions, such as neutron doors.

CUSTOMER MINOR ACTIVE Window

When you select the CUSTOMER MINOR option in the SELECT CONFIGURATION window (Figure 6), the CUSTOMER MINOR ACTIVE window (Figure 31) appears. Use this window to select interlocks and activate or deactivate them.

Using F3 TOGGLE Use the F3 TOGGLE key to toggle the status of an interlock between active (YES) and inactive (NO). Each time you press F3 TOGGLE, the status changes.

To cancel a Change The only way to cancel a change you make is to change it back to the original entry with F3 TOGGLE before you leave the window.

To change an Interlock Setting

Figure 31: CUSTOMER MINOR ACTIVE Window




2. Select CUSTOMER MINOR, then press ENTER.

The CUSTOMER MINOR ACTIVE window (Figure 31) appears.

3. Highlight the status of the interlock you want to change.

4.Press F3 TOGGLE.

Each time you press F3 TOGGLE, the highlight changes back and forth from YES to NO.

5.When you finish making changes, press SET UP.





Configuring Date Format

5.11 Configuring Date Format

General Description

Use the DATE FORMAT option in the SELECT CONFIGURATION window to select the format in which the system displays the date. To change the actual date, use the SET DATE option (page 47).

SELECT DATE FORMAT Window

When you select the DATE FORMAT option in the SELECT CONFIGURATION window (Figure 6), the SELECT DATE FORMAT window (Figure 32) appears.

To cancel a Change

To leave the window without storing a change, press SET UP.

To configure the Date Format

Figure 32: SELECT DATE FORMAT Window




2. Select DATE FORMAT, then press ENTER.

The SELECT DATE FORMAT window (Figure 32) appears.

3.Highlight the date format you want, then press ENTER.






5.12 Setting the Current Date

General Description

Use the SET DATE option in the SELECT UTILITY window to set the current date for the Novalis Dose Delivery System.

ENTER DATE Window

When you select the SET DATE option in the SELECT UTILITY window (Figure 7), the ENTER DATE window (Figure 33) appears.

To cancel a Change To leave the window without storing a change, press SET UP.

To set the current Date

Figure 33: ENTER DATE Window

5.13 Configuring Time Format

General Description

Use the TIME FORMAT option in the SELECT CONFIGURATION window to select the format in which the system displays the time. You can choose either a 12-hour or 24-hour clock format. To change the actual time, use the SET TIME option (page 48).

SELECT TIME FORMAT Window

When you select the TIME FORMAT option in the SELECT CONFIGURATION window (Figure 6), the SELECT TIME FORMAT window (Figure 34) appears.

To cancel a Change To leave the window without storing a change, press SET UP.To configure the Time Format

Step Action Result1. Select UTILITIES in the SELECT OPTION window

(Figure 5), then press ENTER.The SELECT UTILITY window (Figure 7) appears.

2. Select SET DATE, then press ENTER. The ENTER DATE window (Figure 33) appears.

3. Highlight the part of the date you want to set by pressing ENTER or the right arrow key.

4.Enter the new number, then press ENTER from the year input space.


• The SELECT UTILITY window reappears.





2. Select TIME FORMAT, then press ENTER. The SELECT TIME FORMAT window (Figure 34) appears.

3.Highlight the time format you want, then press ENTER.





Setting the Current Time

Figure 34: SELECT TIME FORMAT Window

5.14 Setting the Current Time

General Description

Use the SET TIME option in the SELECT UTILITY window to set the current time for the Novalis Dose Delivery System.

ENTER TIME Window

When you select the SET TIME option in the SELECT UTILITY window (Figure 7), the ENTER TIME window (Figure 35) appears.

To cancel a Change

To leave the window without storing a change, press SET UP.

To set the current Time

Figure 35: ENTER TIME Window

Step Action Result

1. Select UTILITIES in the SELECT OPTION window (Figure 5), then press ENTER.

The SELECT UTILIIY window (Figure 7) appears.

2. Select SET TIME, then press ENTER. The ENTER TIME window (Figure 35) appears.

3. Highlight the part of the time you want to set by pressing ENTER or the right arrow key.

4.Enter the new number, then press ENTER from the minutes input space.


• The SELECT UTILITY window reap-pears.




5.15 Configuring the RV Interface

General Description

Use the RV INTERFACE option in the SELECT CONFIGURATION window to activate the record-and-verify (RV) interface. The RV interface is the connection between the Novalis Dose Delivery System and the information subsystem - Novalis Treat.

RV INTERFACE? Window

When you select the RV INTERFACE option in the SELECT CONFIGURATION window (Figure 6), the RV INTERFACE? window (Figure 36) appears. Use this window to activate or deactivate the RV interface to Novalis Treat.

To cancel a Change To leave the window without storing a change, press SET UP.

To configure the RV Interface

Figure 36: RV INTERFACE? Window




2. Select RV INTERFACE, then press ENTER.

The RV INTERFACE? window (Figure 36) appears.

3. Select YES to activate the interface, then press ENTER.orSelect NO to deactivate the interface, then press ENTER.






Downloading Configurations

6 Downloading Configurations



In this Chapter

About this Chapter The options described in this chapter are available in service mode. Refer to chapter “Using Modes” on page 11 for general procedures for entering and exiting service mode.

6.1 Downloading the Current Configuration

General Description

Use the Download current config option in the UTILITIES window in service mode to download configuration parameters. Make sure you save this configuration (page 53) before you exit service mode or the system discards it when you leave service mode.

What happens when you download

When you select Download current config from the UTILITIES window, the console computer downloads the current (temporary) configuration data to the controller from computer memory.

Downloaded Parameters

The system downloads the following parameters:• Communications timeout)• PRF frequency• Motor control parameters• Dynamic Beam Delivery (DBD) parameters• Customer minor interlock configuration• Position readout (PRO) scale configuration• Machine configuration• Energy table• Motor configuration parameters

Topic PageDownloading the Current Configuration page 51Restoring the Original Configuration page 52


Restoring the Original Configuration

To download the current Configuration

6.2 Restoring the Original Configuration

General Description

Use the Update saved config option in the UTILITIES window in service mode to restore the original (or last saved) values for configuration parameters. Use this function if you changed data during the service mode session, but want to go back to the original parameters.

When you restore a Configuration

When you select Update saved config from the UTILITIES window, the console computer downloads the permanent configuration files from the console computer hard disk to the controller. Any data you modified during the session is discarded.

To restore the original Configuration

Step Action Result1. Select the UTILS menu bar option on the


The UTILITIES window (Figure 23) appears.

2. Select Download current config, then press Enter.

• The system down-loads the current configuration.

• The window closes.




2. Select Update saved config, then press Enter.

• The system restores the previously-saved configuration.



Saving Configuration Data

7 Saving Configuration Data




In this Chapter

About this Chapter The save service mode configuration data option described in this chapter is available in service mode. The save physics mode configuration data option described is available in physics mode. Refer to chapter “Using Modes” on page 11 for general procedures for entering and exiting modes.

7.1 Saving Service Mode Configuration Data

General Description

Use the Write data to disk option in the CALIBRATION window in service mode to save the configuration changes you made during the current service mode session. The changes become part of the permanent machine configuration. If you do not save configuration changes to the computer hard disk, the system discards them when you leave service mode.

SAVE CONFIG DATA CHANGES Window

When you select Write data to disk from the CALIBRATION window, the SAVE CONFIG DATA CHANGES window (Figure 37) appears.

Topic PageSaving Service Mode Configuration Data page 53Saving Physics Mode Configuration Data page 54


Saving Physics Mode Configuration Data

To save Service Mode Data

Figure 37: SAVE CONFIG DATA CHANGES Window

7.2 Saving Physics Mode Configuration Data

General Description

The system stores changes you make to configuration data in memory while you are in physics mode. To make changes permanent, you must save them to the hard disk before you leave physics mode.

F5 Function Key Use the F5 SAVE function key to save all changes stored in memory since the last time changes were saved. You can either use F5 SAVE once (after you make all changes), or you can use it multiple times (for example, after each change).

SAVE TO DISK? When you press F5 SAVE, the SAVE TO DISK? window (Figure 38) appears.

To save Physics Mode Data

Figure 38: SAVE TO DISK ? Window

Step Action Result

1. Select the CALIB menu bar option on the service mode screen (Figure 3), then press Enter.

The CALIBRATION window (Figure 21) appears.

2. Select Write data to disk, then press Enter.

The SAVE CONFIG DATA CHANGES window (Figure 37) appears.

3.Select NO to clear the window without saving any changes, then press Enter.orSelect YES to save the configuration data to the hard disk, then press Enter.

The system displays a message confirming that calibration changes are not being saved to disk.• The system displays a message that calibration

changes are being saved to disk. • If you select YES but made no changes, the sys-

tem displays a message that the data has not changed.


Step Action Result



2. Press F5 SAVE. The system prompts you to confirm the save (Figure 38).

3.Select YES, then press ENTER.

or

Select NO to cancel the save.

• The system displays a message that it is saving the data.

• After the system saves the data, the SELECT CONFIGURATION window reappears. The SELECT CONFIGURATION win-dow reappears.


Working with Configurations

8 Working with Configurations


In this Chapter

About this Chapter The backup and restore options described in this chapter are available in physics mode. The view log options are available in communications mode. Refer to chapter “Using Modes” on page 11 for general procedures for entering and exiting modes.

The morning checkout and event logs available through communications mode are intended for service personnel who evaluate machine performance trends. Interpreting the data in these logs requires considerable service experience.

Topic PageBacking Up a Configuration page 56Restoring a Configuration page 57Backing Up Event Logs page 58Backing Up Morning Checkout Logs page 59Viewing Logs page 60Displaying Backup Logs page 62


Backing Up a Configuration

8.1 Backing Up a Configuration

General Description

Use the BACKUP CONFIGURATION option in the SELECT UTILITIES window in physics mode to back up configuration data on the hard disk to a diskette. Changes made during the current physics mode session are included in the backup only if you have saved them with F5 SAVE (page 54).

To backup a Configuration

Messages you may see

Step Action Result1. Select UTILITIES in the SELECT


The SELECT UTILITY window (Figure 7) appears.

2. Select BACKUP CONFIGURATION, then press ENTER.

The system prompts you to insert the backup diskette into drive A, then press ENTER.

3. Insert the diskette into drive A, then press ENTER.

The system displays a message that it is saving data, then the SELECT UTILITY window reappears.

4. To cancel the save, press SET UP.

If the system displays... Then...

Unable to Read Diskette

Check that the diskette is:• correctly inserted into drive A• formatted

Correct the problem, then press ENTER.

Over-Write Files ?

• Highlight YES, then press ENTER to replace any previously backed configuration data on the diskette with the current data.

or

• Highlight NO, then press ENTER to cancel the backup.



8.2 Restoring a Configuration

General Description

Use the RESTORE CONFIGURATION option in the SELECT UTILITY window in physics mode to restore configuration data from a diskette to the hard disk.

To restore a Configuration





2. Select RESTORE CONFIGURATION, then press ENTER.

The system prompts you to insert the diskette with the configuration data into drive A, then press ENTER.


The system displays a message that it is verifying the data as it is restored, then the SELECT UTILITY window reappears.


Unable to Read DisketteCheck that the diskette is correctly inserted into drive A. Correct the problem, then press ENTER.

Configuration Files On Diskette Are Not Valid

Make sure the diskette is a backup for this particular machine and for this version of software. Correct the problem, then press ENTER.


Backing Up Event Logs

8.3 Backing Up Event Logs

General Description

Use the BACKUP EVENT LOGS option in the SELECT UTILITY window in physics mode to back up event logs from the hard disk to a diskette.

Definition of Event Logs

Event logs are special files that the system creates when, for example, an interlock interrupts treatment or when the controller self-test fails. For a complete description and example of an event log, refer to the Reference Guide for the Novalis Dose Delivery System.

About Event Logs The console computer can store up to 199 event logs.

After 199 event logs have been stored, the system deletes the oldest log whenever you exit morning checkout mode. To maintain a continuous history, you should back up event logs twice a month.

To back up Event Logs





2. Select BACKUP EVENT LOGS, then press ENTER.

The system prompts you to insert a formatted diskette into drive A, then press ENTER.


The system displays a message that it is saving the data, then the SELECT UTILITY window reappears.





Over-Write Files ?

• Highlight YES, then press ENTER to replace any previously backed-up logs on the diskette with the current logs.

or




8.4 Backing Up Morning Checkout Logs

General Description

Use the BACKUP CHECKOUT LOGS option in the SELECT UTILITY window in physics mode to back up morning checkout logs from the hard disk to a diskette.

Definition of Morning Checkout Logs

Morning checkout logs are records of the machine validation checks performed during the morning checkout procedure. For morning checkout procedures, refer to the Clinical User Guide for the Novalis Dose Delivery System. For a complete description and example of a morning checkout log, refer to the Reference Guide for the Novalis Dose Delivery System.

About Morning Checkout Logs

The console computer can store up to 199 morning checkout logs.

After 199 morning checkout logs have been stored, the system deletes the oldest log whenever you exit morning checkout mode. To maintain a continuous history, you should back up morning checkout logs twice a month.

To backup Morning Check-Out Logs





2. Select BACKUP CHECKOUT LOGS, then press ENTER.

The system prompts you to insert a formatted diskette into drive A, then press ENTER.


The system displays a message that it is saving the data, then the SELECT UTILITY window reappears.





Over-Write Files ?

• Highlight YES, then press ENTER to replace any previously backed up logs on the diskette with the current logs.

or



Viewing Logs

8.5 Viewing Logs

General Description

Use communications mode to view event, morning checkout, and dynamic beam delivery logs. Refer to chapter “Using Modes” on page 11 for the procedures for entering and exiting communications mode. For a detailed description of the contents of the logs, refer to the Reference Guide for the Novalis Dose Delivery System.

You must use the alphanumeric keyboard in communications mode.

When you enter Communications Mode

If you have the optional remote diagnostic communications feature, the Modem Connect selection window (Figure 8) appears. You can enable remote communications first (page 97), or you can select Translator Only to just view logs.

If you do not have the optional remote diagnostic communications feature, the Translator selection window (Figure 9) appears.

To view Logs

About the List of Logs

Each list is a chronology of the logs of that type that are currently stored on the console computer hard disk.Up to ten logs are displayed at a time.The total number of logs currently stored appears above the list. This never exceeds 199, the maximum number that can be stored.After 199 logs have been stored, the system deletes the oldest log whenever you exit morning checkout mode.The first time you display a 1ist of logs after entering communications mode, the most recent log (last log created) is highlighted at the top of the list, followed by all previous (earlier) logs in time and date order. When you return to a list any time during a communications session, the last log you displayed is highlighted at the top of the window.The number at the lower right is a unique log reference index number that is helpful when you are viewing a series of event logs with similar interlock titles.

Moving around the List of Logs

Use the up and down arrow keys to move the highlight one line at a time. The highlight moves in the direction of the arrow key you press. When the highlight reaches the top or bottom of the displayed portion of the list, the list scrolls one line at a time each time you press the arrow. If you hold an arrow key down, the 1ist scrolls rapidly.

The Page Up key displays the previous (more recent) 10 entries. The Page Down key displays the next (earlier) 10 entries. If you hold one of these keys down, the list scrolls rapidly (10 at a time).

Press Esc to return to the previous window.

Step Action Result1. In the Translator selection window (Figure

9), select the type of log you want to view, then press Enter.

The system displays a list of the logs you can view (Figure 39, Figure 40, and Figure 41).

2. When you find the log you want to display, highlight it, then press Enter. The system displays the log.

3. To exit from the log and return to the list of logs, press Esc from any page.

The log you just exited is highlighted at the top of the 1ist.



Figure 39: Sample List of Morning Checkout Logs

Figure 40: Sample List of Dynamic Beam Delivery Logs


Displaying Backup Logs

8.6 Displaying Backup Logs

General Description

Qualified service personnel can view backup morning checkout and event logs that are stored on a diskette.

Figure 41: Sample List of Event Logs

Step Action Result1. From the SELECT MAJOR MODE

window (Figure 1), press F1 EXIT.The system prompts you to enter the password to exit to the operating system (DOS).

2. Enter the correct password.When you are in DOS, be careful that you do not modify or delete existing files in the C:\Varian directory.

3. Insert the backup diskette into drive A on the console computer.

4. At the C:\Varian prompt, enter “COMMUN A:\”, then press Enter.

The communications program is loaded with the logs from the backup diskette.

5. When you finish, highlight Quit and press ENTER to return to the SELECT MAJOR MODE window.


Printing Configuration Data

9 Printing Configuration Data


General Description

You can print a summary of physics mode configuration data. The summary includes the default morning checkout treatments. The printout shows the data in memory at the time you request the printout. If you do not save that data before you leave physics mode (page 54), the printout will be inconsistent with the actual current data.

To exit from the Printout

To exit from the printout, press SET UP. You may want to do this if you cannot correct a printer problem.

If you have Printer Problems

To print Configuration Data

If... Then...

the system displays Printer is not Ready

check the following items:• the power cord and cable are plugged in at

both ends• the printer power switch is on• the printer is loaded with paper• the paper is not jammed

After you correct the problem, press ENTER to continue printing.

a problem develops during printing

• turn the printer off• reposition the paper• turn the printer back on• press ENTER

Step Action Result1. If necessary, enter physics mode

(page 20).The SELECT OPTION window (Figure 5) appears.

2. Select CONFIGURATION, then press ENTER.


3.Press F6 PRINT.

The system displays a window that asks if passwords should be printed with the configuration data.

4. Select YES or NO, then press ENTER.

The system prompts you to get the printer ready.

5.Check that the console printer is switched on and the paper is positioned properly, then press ENTER.

• The system displays a message that printing is in progress.

• When the data has printed, the SELECT CONFIGURATION window reappears.



Interlocks, Triggers and Lights

10 Interlocks, Triggers and Lights



In this Chapter


10.1 Using the INTLK/TRIG/LT Option

General Description

Use the INTLK/TRIG/LT menu bar option in service mode to:

• Override or reset interlocks.• Disable system triggers.• Switch various lights on and off.

INTLK/TRIG/LT Window

When you select the INTLK/TRIG/LT option, the INTLK/TRIG/LT window appears (Figure 42).

Figure 42: INTLK/TRIG/LT Window

Topic Page

Using the INTLK/TRIG/LT Option page 65

Overriding Interlocks page 66

Turning Triggers Off and On page 67

Turning Lights and Lasers Off and On page 68


Overriding Interlocks

10.2 Overriding Interlocks

General Description

Use the Override intlks option in the INTLK/TRIG/LT window to override interlocks which are or might become active during an exposure. If you override an interlock, the beam does not terminate if the interlock is activated. Refer to the Appendix for a complete list and description of interlocks.

Interlock Status Area

The interlock status area at the top of the service mode screen (Figure 3) lists the interlocks that you can access in service mode. The last interlock you selected is highlighted (yellow characters on a black background). If you have not selected any interlocks in the current service mode session, the highlight is on the interlock at the top left.

Status of Interlocks The color of the interlock and the background indicate the status of the interlock.

KEYBOARD OVERRIDE Window

When you select the Override intlks option, the KEYBOARD OVERRIDE window (Figure 43) appears. This window contains instructions on overriding interlocks.

Figure 43: KEYBOARD OVERRIDE Window

To override or reactivate Interlocks

To reset or deactivate Interlocks

You can also reset or deactivate (but not override) interlocks. The procedures you use are the same as the procedure to override interlocks.

• Use the General intlk clear option in the INTLK/TRIG/LT window (Figure 42) to reset or deactivate (but not override) all latched active non-dosimetry interlocks. If the conditions that caused the interlock persist, the interlock can become active again.

• Use the Dose intlk clear option in the INTLK/TRIG/LT window (Figure 42) to reset or deactivate (but not override) all latched active dosimetry interlocks. If the conditions that caused the interlock persist, the interlock can become active again.

Colors Meaning

White letters on a light blue background Interlock enabled and not active

White letters flashing on a red background Interlock enabled and active

Black letters on a red background Interlock overridden, but active

Black letters on a light blue background Interlock overridden, but not active

Step Action Result1. Select the INTLK/TRIG/LT menu bar

option on the service mode screen (Figure 3), then press Enter.

The INTLK/TRIG/LT window (Figure 42) appears.

2. Select Override intlks, then press Enter. The KEYBOARD OVERRIDE window (Figure 43) appears.

3. In the interlock status area (Figure 3), highlight the interlock you want to override, then press Enter.

The interlock appears in black characters.

4. To reactivate an overridden interlock, highlight it, then press Enter. The interlock appears in white characters.

5. When you finish, press Esc. The system returns you to the service mode menu bar.


Interlocks, Triggers and Lights

10.3 Turning Triggers Off and On

General Description

Use the Triggers off/on option in the INTLK/TRIG/LT window to deactivate selected triggers while you perform maintenance and troubleshooting procedures.

Definition of Trigger A trigger is a timing signal that coordinates beam production and dosimetry.

TRIGGER ENABLE Window

When you select the Triggers off/on option in the INTLK/TRIG/LT window (Figure 42), the TRIGGER ENABLE window appears. The system displays the real-time status (OFF or ON) of each trigger.

About changing Trigger Status

Toggling the trigger status display does not change the actual trigger status until you exit the TRIGGER ENABLE window.

Any trigger status changes you make from this window remain in effect only during the current service mode session. The system resets triggers when you exit service mode.

You cannot disable triggers in clinical mode.

To change the status of a Trigger

Figure 44: TRIGGER ENABLE Window




2. Select Triggers off/on, then press Enter. The TRIGGER ENABLE window appears.

3.Highlight the trigger, then press Enter.

Each time you press Enter, the status toggles from OFF to ON or from ON to OFF.

Depending on the factory configuration of your Novalis Dose Delivery System, if you have selected the highest rep rate (page 29), you may not be able to turn off the dose servo. Even if you can turn the dose servo off, you may be unable to use the highest rep rate.

4. When the status of all triggers is set the way you want, press Esc.

• The system implements the changes.• The window closes.


Turning Lights and Lasers Off and On

10.4 Turning Lights and Lasers Off and On

General Description

Use the Lights off/on option in the INTLK/TRIG/LT window to control:

• Field light• Various laser beams• Treatment room lights

LIGHTS Window When you select the Lights off/on option in the INTLK/TRIG/LT window (Figure 42), the LIGHTS window (Figure 45) appears.

About the LIGHTS Window

The LIGHTS window shows the status (OFF or ON) of each light at the time you display the window.

Changes made from the light controls on the pendant or couch while this window is displayed do not appear on the screen.

To turn Lights and Lasers off and on

Figure 45: LIGHTS Window




2. Select Lights off/on, then press Enter. The LIGHTS window (Figure 45) appears.

3. Highlight the light or laser you want to turn off (or on), then press Enter.orEnter the first letter of the item name (for example, F for field light), then press Enter.

The INTLK/TRIG/LT window reappears.


Displaying Information

11 Displaying Information



In this Chapter


Topic PageUsing the DISPLAY Option page 70Displaying Machine Analog Meter Values page 70 Displaying Analog PRO Meter Values page 71Displaying Meter Gain and Offset Factors page 72Displaying Pro Meter Gain and Offset Factors page 73Displaying SPRO Values page 74Displaying the Status of Digital I/O Lines page 74Displaying Parameters for Positioning Motors page 75Displaying Control Parameters for a Motor Axis page 77Displaying DBD Control Parameters page 78Displaying Limits for Motor Axis Positions page 79Displaying Contents of Common RAM page 80Displaying the Status of an I/O Port page 81Displaying the Status of Control System Timers page 81Displaying the Current PRF page 82


Using the DISPLAY Option

11.1 Using the DISPLAY Option

General Description

Use the DISPLAY menu bar option to display various kinds of process data including:• Current values of analog meters (Analog)• Status of all digital I/O lines and control timers (Digital)• Current drive and control parameters for each positioning motor of the Novalis Dose

Delivery System (Motor Status)• Status of a selected portion of the common RAM memory (Hex Window)• Secondary position readout (PRO) readings (SPRO)• Status of each control system timer (Timers)

DISPLAY Window When you select the DISPLAY menu bar option, the DISPLAY window (Figure 46) appears.

About Displays You can work with most other service mode options while a display is on the screen so that you can observe real-time changes. Displays are toggle functions. A display remains on the screen until you remove it by selecting the same option again.

11.2 Displaying Machine Analog Meter Values

General Description

Use the Analog option in the DISPLAY window to display the current values of the machine analog meters.

ANALOG DISPLAY Window

When you select Analog from the DISPLAY window, the ANALOG DISPLAY window (Figure 47) appears. Use this window to select the Machine option.

ANALOG METERS Display

When you select the Machine option, the ANALOG METERS display appears.

Figure 46: DISPLAY Window

Figure 47: ANALOG DISPLAY Window

Figure 48: ANALOG METERS Display

Content of the ANALOG METERS Display

The first two columns show scaled meter values for low voltage power supply voltage, for steering coil current, and for beam symmetry.



The last two columns show meter values for process parameters from a variety of sources in the Novalis Dose Delivery System.

The machine meter values you see depend on the gain and offset factors set at the factory for each meter. To view these factors, use the Alg Meter Calibration option (page 72).

To display analog Machine Meter Values

11.3 Displaying Analog PRO Meter Values

General Description

Use the Analog option in the DISPLAY window to display the current values of the analog position readout (PRO) meters.

ANALOG DISPLAY Window

When you select Analog from the DISPLAY window, the ANALOG DISPLAY window (Figure 47) appears. Use this window to select the PRO option.

PRO METERS Display

When you select the PRO option, the PRO METERS display (Figure 49) appears.

Content of the PRO METERS Display

The display includes PRO pot wiper voltage and motor current readings from all ten motor axes, and secondary PRO values for the gantry and the upper collimator jaws.There are also readings for the negative and positive power supplies for the gantry, collimator, and couch PROS.The PRO meter values you see depend on the gain and offset factors set at the factory for each meter. To view these factors, use the PRO Meter Calibration option (page 73).

To display analog Pro Meter Values

Step Action Result1. Select the DISPLAY menu bar option on

the service mode screen (Figure 3), then press Enter.

The DISPLAY window (Figure 46) appears.

2. Select Analog, then press Enter. The ANALOG DISPLAY window (Figure 47) appears.

3. Select Machine, then press Enter. The ANALOG METERS display appears.

Step Action Result

1. Select the DISPLAY menu bar option on the service mode screen (Figure 3), then press Enter.


2. Select Analog, then press Enter. The ANALOG DISPLAY window (Figure 47) appears.

3. Select PRO, then press Enter. The PRO METERS display (Figure 49) appears.


Displaying Meter Gain and Offset Factors

11.4 Displaying Meter Gain and Offset Factors

General Description

Use the Analog Scaling option in the CALIBRATION window to display the gain and offset factors that are applied to the raw value detected by the Novalis Dose Delivery System for a selected machine meter. You can display the resulting scaled meter value with the Analog option in the DISPLAY window (page 70).

Analog Scaling Selection Window

When you select Analog Scaling from the CALIBRATION window (Figure 21), a revised CALIBRATION window (Figure 50) appears. Use this window to select the Alg Meter Calibration option.

SELECT ANALOG METERS Window

When you select the Alg Meter Calibration option, the SELECT ANALOG METER window appears. Use this window to select the analog meter you want.

Figure 49: PRO METERS Display

Figure 50: Revised CALIBRATION Window

Figure 51: SELECT ANALOG METER Display

METER CALIBRATION Window

When you select an analog meter, the corresponding gain and offset values set at the factory appear in a METER CALIBRATION window (Figure 52).

To display Meter Offset Factors Step Action Result



2. Select Analog Scaling, then press Enter. A revised CALIBRATION window (Figure 50) appears.

3. Select Alg Meter Calibration, then press Enter.

The SELECT ANALOG METER window appears.

4. Select the analog meter you want, then press Enter.

The METER CALIBRATION window (Figure 52) appears.




Figure 52: METER CALIBRATION Window

11.5 Displaying Pro Meter Gain and Offset Factors

General Description

Use the Analog Scaling option in the CALIBRATION window to display the gain and offset factors that are applied to the raw value detected by the Novalis Dose Delivery System for a selected PRO meter. You can display the resulting scaled meter value with the Analog option in the DISPLAY window (Figure 46).

Analog Scaling Selection Window

When you select Analog Scaling from the CALIBRATION window (Figure 21), a revised CALIBRATION window (Figure 50) appears. Use this window to select the PRO Meter Calibration option.

PRO METERS CALIBRATION Window

When you select the PRO Meter Calibration option, the PRO METER CALIBRATION window (Figure 53) appears. Use this window to select the PRO meter you want.

METER CALIBRATION Window

When you select a PRO meter, the corresponding gain and offset values set at the factory appear in a METER CALIBRATION window (Figure 52).

To display Pro Meter Offset Values

Figure 53: PRO METER CALIBRATION Window

Step Action Result1. Select the CALIB menu bar option on the



2. Select Analog Scaling, then press Enter. A revised CALIBRATION window (Figure 50) appears.

3. Select PRO Meter Calibration, then press Enter.

The PRO METER CALIBRATION window (Figure 53) appears.

4. Select the PRO meter you want, then press Enter.

The METER CALIBRATION window (Figure 52) appears.



Displaying SPRO Values

11.6 Displaying SPRO Values

General Description

Use the SPRO option in the DISPLAY window to display the real-time values of all enabled secondary PRO positions. Currently, SPRO is available only for the gantry rotation and upper collimator jaw axes. SPRO values appear in the same scale as the primary PRO values displayed at the bottom of the screen.

SPRO DISPLAY Window

When you select the SPRO option in the DISPLAY window (Figure 46), the SPRO DISPLAY window (Figure 54) appears.

Interlocks A mismatch between the PRO and SPRO values for the same motor axis results in an HWFA interlock.

To display SPRO Values

Figure 54: SPRO DISPLAY Window

11.7 Displaying the Status of Digital I/O Lines

General Description

Use the Digital option in the DISPLAY window to display the current status of all digital input/output (I/O) lines.

DIGITAL DISPLAY Window

When you select Digital in the DISPLAY window, the DIGITAL DISPLAY window (Figure 55) appears. Use this window to select Inputs or Outputs.

DIGITAL INPUTS Display

When you select the Inputs option, the DIGITAL INPUTS display appears. This display shows the state of digital input signals to the controller.

Figure 55: DIGITAL DISPLAY Window

Figure 56: DIGITAL INPUTS Display




2. Select SPRO, then press Enter. The SPRO DISPLAY window (Figure 54) appears.

3. Press Enter twice or Esc. The window closes.



DIGITAL OUTPUTS Display

When you select the Outputs option, the DIGITAL OUTPUTS display (Figure 57) appears. This display shows the state of all digital output signals from the controller.

Content of the Displays

Each column in both the inputs and outputs displays represents a port of digital I/O data (one byte).

Each code or number in a column represents a bit of the port data byte. For example, BO_Enable on the input board is bit 4 of I/O Port 10 and BP_LASER is bit 7 of I/O Port 18 on the output board.The bit number itself appears in the column if the bit has not been assigned to a particular function. For example, the unused bit 7 of I/O Port C on the output board is labelled 7.The function of the bit (input or output) and its real-time status (active or inactive) are indicated by the following color coding.

The port on the far left of the inputs display shows output bits, and the port on the far right of the outputs display shows input bits.

Figure 57: DIGITAL OUTPUTS Display

To display Status of digital I/O Lines

11.8 Displaying Parameters for Positioning Motors

General Description

Use the Motor Status option in the DISPLAY window to display the current drive and control parameters for each positioning motor of the Novalis Dose Delivery System. This display is useful for troubleshooting motion problems. For example, if the controller is not putting out a Drv (DAC) signal, the controller is preventing motion through software. If a Drv signal is present yet motion does not occur, the problem is beyond the controller.

MOTOR STATUS Display

When you select the Motor Status option in the DISPLAY window (Figure 46), the MOTOR STATUS display (Figure 58) appears.

Type of Bit Color CodingActive output Light blue characters on a black backgroundActive input Yellow characters on a black backgroundAll inactive Black characters on a light grey background




2. Select Digital, then press Enter. The DIGITAL DISPLAY window (Figure 55) appears.

3.Select Inputs or Outputs, then press Enter.

The DIGITAL INPUTS window or DIGITAL OUTPUTS window (Figure 57) appears.

4. Press Enter three times or Esc. The window closes.


Displaying Parameters for Positioning Motors

Content of the MOTOR STATUS Display

Table 3 describes the control and drive status elements that display for each motor axis.

When there is no motion, only the Drv status indicators appear.

The status of operator-initiated motion enable input appears at the bottom of the display by the label MotionEn. The status of controller-initiated dynamic motion enable output appears by the label DynMotEn. These labels are black when the motion enable is active and white when it is inactive.

When MotionEn is activated, one of three motion enable outputs is asserted. These three outputs are Gantry_En for gantry rotation, Collm_En for collimator rotation and jaw movement. or Couch_En for any of the couch motions. See Port D, bits 0 through 2 on the DIGITAL OUTPUTS display (Figure 57). As each of these group enable outputs is asserted, the column headings for the affected motion axes change from white characters to black.

To display Positioning Motor Parameters

To display positioning motor parameters, select Motor Status in the DISPLAY window (Figure 46). The MOTOR STATUS display appears (Figure 58).

Table 3: Motor Axis Control and Drive Status

Row Description

Cmd (command)

Indicates the type of motion command the operator is initiating.

Options are:• Velocity (Vel)• Position (Pos)• Position with velocity (P/V)

Auto Displays Yes if an automatic motion is being executed.

Vcmd (velocity command)

Displays the velocity data received by the communication microprocessor from the pendants, side panels, or console.

The display format is +/- #. The numeric value ranges from 0 to 7.

Pcmd (position command)

Displays the target position. The target position is displayed when a position or position with velocity command is executing.

The display format is +/- ###.#.

Drv (Drive) Displays the motor velocity DAC output from the controller.

The display format is +/- #.##. The DAC output range is +/- 10V.

Sts (Status) Indicates the type of motion command the controller is executing.

• Options are:• Open loop velocity command

(Ovel)• Closed loop velocity command

(Cvel)• External position command

(Pos)• Position with velocity com-

mand (P/V)• Internal command (Int)

No label Displays:• Limit if the axis velocity or position

limit has been reached.• Target if the target velocity or position

has been achieved.



Figure 58: MOTOR STATUS Display

11.9 Displaying Control Parameters for a Motor Axis

General Description

Use the Motor parameters option in the CALIBRATION window to display the control parameters for a selected motor axis. Control parameters are the absolute minimum and maximum values for position and velocity.

MOTOR PARAMETERS Window

When you select Motor parameters in the CALIBRATION window (Figure 21), the MOTOR PARAMETERS window (Figure 59) appears. Use this window to select the Parameters option.

SELECT MOTOR AXIS Window

When you select the Parameters option, the SELECT MOTOR AXIS window (Figure 60) appears. Use this window to select a motor axis.

Figure 59: MOTOR PARAMETERS Window

Figure 60: SELECT MOTOR AXIS Window

ADJUST MOTORS Window

When you select a motor axis, an ADJUST MOTORS window (Figure 61) appears with the control parameters for the motor axis. The parameters are in hexadecimal format. The hex numbers in parentheses indicate the range within which the parameter values can fall (8000h is understood to be signed negative).

To display Control Parameters for a Motor Axis




2. Select Motor parameters, then press Enter. The MOTOR PARAMETERS window (Figure 59) appears.

3. Select Parameters, then press Enter. The SELECT MOTOR AXIS window (Figure 60) appears.

4. Select the motor axis you want, then press Enter.

An ADJUST MOTORS window (Figure 61) appears.



Displaying DBD Control Parameters

Figure 61: ADJUST MOTORS Window

11.10 Displaying DBD Control Parameters

General Description

Use the DBD Parameters option in the CALIBRATION window to display the control parameters for a selected Dynamic Beam Delivery (DBD) motor axis. The control parameters are set at the factory.


When you select the DBD Parameters option in the CALIBRATION window (Figure 21), the SELECT MOTOR AXIS window (Figure 60) appears. Use this window to select the motor axis you want.

ADJUST DYNAMIC PARAMS Window

When you select a motor axis, an ADJUST DYNAMIC PARAMS window (Figure 62) appears with the DBD control parameters for the motor axis. The parameters are in hexadecimal format. The hex numbers in parentheses indicate the range within which the parameter values can fall.

To display DBD Control Parameters

Figure 62: ADJUST DYNAMIC PARAMS Window




2. Select DBD Parameters, then press Enter. The SELECT MOTOR AXIS window (Figure 60) appears.


An ADJUST DYNAMIC PARAMS window (Figure 62) appears.

4. Press ENTER or Esc. The window closes.



11.11 Displaying Limits for Motor Axis Positions

General Description

Use the Motor parameters option in the CALIBRATION window to display the following parameters that are set at the factory:

• Position limits set for a selected motor axis• Number of capture positions used to calibrate the PRO readout for that axis• Location of capture positions

Setting the PRO Scale

You cannot select the Limits option unless the PRO scale is set to Internal. Use the Select PRO scale option in the CALIBRATION window (Figure 21) to set the scale to Internal.

MOTOR PARAMETERS Window

When you select Motor parameters in the CALIBRATION window (Figure 21), the MOTOR PARAMETERS window (Figure 59) appears. Use this window to select the Limits option.


When you select the Limits option, the SELECT MOTOR AXIS window (Figure 60) appears. Use this window to select a motor axis.

MOTORS LIMITS Window

When you select a motor axis, the motor control limits for the motor axis appear in the MOTORS LIMITS window (Figure 63).

About Motor Control Limits

Limits appear in decimal format.

The numbers in parentheses indicate the input limits of motion for the axis. The software limits are always less than the full mechanical range. For example, the input range for gantry rotation is -10 to 370, but the current travel and software limits are between -5 and 365.

Figure 63: MOTORS LIMITS Window

To display Control Parameters for a Motor Axis




2. Select Motor parameters, then press Enter. The MOTOR PARAMETERS window (Figure 59) appears.

3. Select Limits, then press Enter. The SELECT MOTOR AXIS window (Figure 60) appears.


A MOTORS LIMITS window (Figure 63) appears.

5. To display the number of captures for the motor axis, press Enter or Esc.

The system displays the number of captures.

6. To display the capture positions for the motor axis, press ENTER or Esc. The system displays the capture positions.

The numbers in parentheses indicate the software limits of motion for the axis.7. Press Enter or Esc. The window closes.


Displaying Contents of Common RAM

11.12 Displaying Contents of Common RAM

General Description

Use the Hex Window option in the DISPLAY window to display the real-time value of 80 bytes in common RAM starting at a location that you specify. The hex window is most commonly used to read CTRL interlock error codes.

MEMORY DISPLAY OFFSET Window

When you select the Hex Window option in the DISPLAY window (Figure 46), the MEMORY DISPLAY OFFSET window (Figure 64) appears. Use this window to enter the RAM starting location (in hexadecimal).

To display Contents of Common RAM

Figure 64: MEMORY DISPLAY OFFSET Window

Figure 65: COMMON RAM MEMORY Window




2. Select Hex Window, then press Enter. The MEMORY DISPLAY OFFSET window (Figure 64) appears.

3.

Enter the offset as a hexadecimal number, then press Enter.

• The COMMON RAM MEMORY window (Figure 65) appears. This window displays the value of each of the 80 bytes selected as a 2-digit hex number.

• The 4-digit hex offset you entered appears in the top left comer of the display.

4. Press Enter twice or Esc. The window closes.



11.13 Displaying the Status of an I/O Port

General Description

Use the Read I/O data option in the UTILITIES window to display the status of a selected input/output (I/O) port.

READING I/O DATA Window

When you select the Read I/O data option from the UTILITIES window (Figure 23), the READING I/O DATA window (Figure 66) appears. Use this window to enter the I/O port address (in hexadecimal).

Default Port The default value is the last port read. If you have not used the Read I/O data option during the current service mode session, the default is 0.

How the System displays the Data

The system displays the current data at the selected port as a 2-digit hexadecimal number.

When expressed in binary format, this number presents an 8-digit array of l's and O's indicating the On/Off status of each bit at the port. For example, if the status indication for a given port is 23h (1100 0100), then bits 3, 7, and 8 are active.

To display Status of I/O Port

Figure 66: READING I/O DATA Window

11.14 Displaying the Status of Control System Timers

General Description

Use the Timers option in the DISPLAY window to display the output status of each of the control system timers.

H/W TIMER OUTPUTS Window

When you select the Timers option from the DISPLAY window (Figure 46), the H/W TIMER OUTPUTS window (Figure 67) appears.

Timer Color Coding Active timer outputs appear as light blue characters on a black background. Inactive timer outputs appear as black characters on a light grey background.

About Timer States Because the system updates screen data relatively slowly compared to pulsed signals, timer states may appear to be inactive or to be active all of the time. Static signals appear normally.




2. Select Read I/O data, then press Enter. The READING I/O DATA window (Figure 66) appears.

3. Enter the 2-digit hexadecimal number of the port whose data you wish to read, then press Enter.

The system displays the current data.



Displaying the Current PRF

To display Status of Control System Timers

To display the status of control system timers, select Timers in the DISPLAY window (Figure 46). The H/W TIMERS OUTPUTS window (Figure 67) appears.

Figure 67: H/W TIMER OUTPUTS Window

11.15 Displaying the Current PRF

General Description

Use the PRF Frequency option in the CALIBRATION window to display the current pulse repetition frequency.

PRF FREQUENCY Window

When you select PRF Frequency from the CALIBRATION window, the PRF FREQUENCY window (Figure 68) appears. Use this window to select the Set PRF frequency option.

ENTER PRF FREQUENCY Window

When you select the Set PRF frequency option, the ENTER PRF FREQUENCY window (Figure 69) appears.

To display the current PRF

Figure 68: PRF FREQUENCY Window

Figure 69: ENTER PRF FREQUENCY Window




2. Select PRF Frequency, then press Enter. The PRF FREQUENCY window (Figure 68) appears.

3. Select Set PRF frequency, then press Enter.

The ENTER PRF FREQUENCY window (Figure 69) appears, with the current PRF value.



Controlling Motions in Service Mode

12 Controlling Motions in Service Mode

Only properly qualified persons are authorized to operate the Novalis Dose Delivery System. Uninformed or careless operation expose you, patients, and other persons to hazards that cause serious injury or death. Before operating the Novalis Dose Delivery System, you must:

• Read and fully understand the emergency and safety procedures in the Reference Guide for the Novalis Dose Delivery System.

• Read and fully understand all hospital rules and procedures for operating the machine.

In this Chapter

About this Chapter All the options described in this chapter are available in service mode. Refer to chapter “Using Modes” on page 11 for general procedures for entering and exiting service mode.

12.1 Controlling Motions



General Description

In service mode, use the MOTOR menu bar option to move the Novalis Dose Delivery System axes in either manual or automatic mode.

Manual Mode In manual mode, you control velocity and stop position using the motion control keys on the dedicated keyboard.

Topic PageControlling Motions page 83Moving a Motor Axis Manually page 84Moving the Gantry Automatically page 85Moving the Couch Automatically page 87Initiating Motion While the Beam is On page 88


Moving a Motor Axis Manually

Automatic Mode In automatic mode, velocity is set internally, and motion stops at the position you enter.

Motion Enable Controls

You must hold down a motion enable control to move any axis (except collimator jaw axes in automatic mode) in either manual or automatic mode.

MOTORS Window When you select the MOTOR menu bar option, the MOTORS window (Figure 70) appears. Use this window to select what you want to move and the type of motion.To Cancel Motion Selections

To cancel all motion selections, display the MOTORS window again and press Esc.

Figure 70: MOTORS Window

12.2 Moving a Motor Axis Manually

General Description

Use the Manual motion option in the MOTORS window to select an axis for manual motion in service mode.


When you select the Manual motion option in the MOTORS window (Figure 70), the SELECT MOTOR AXIS window (Figure 71) appears. Use this window to select the motor axis that you want to move manually.

About selecting a Motor Axis

You can select only one axis at a time for manual motion. When you select a different axis, the system highlights it in place of the prior selection.

When you select an asymmetric motion (COLL Y1, Y2, X1, or X2) and press the MOTION ENABLE bar on the dedicated keyboard, the system is placed in asymmetric mode. To return to symmetric mode, select FIELD Y or FIELD X, then press the MOTION ENABLE bar.

While a motor axis is selected for manual motion, its position readout at the bottom of the screen is highlighted on a light blue background. As motion occurs, the readout changes in real-time.

Neither manual nor automatic motion is allowed when the HWFA, STPS, or CTRL interlock is active.




To move a Motor Axis manually

To cancel Motion Selections

To cancel all motion selections, display the MOTORS window again and press Esc.

12.3 Moving the Gantry Automatically

General Description

Use the Gantry automatic option in the MOTORS window to select a motor axis and move it automatically in service mode.

SELECT GANTRY TARGET Window

When you select the Gantry automatic option in the MOTORS window (Figure 70), the SELECT GANTRY TARGET window (Figure 72) appears. Use this window to select the gantry or a collimator axis for automatic motion.

About selecting a Motor Axis

Each axis remains selected for automatic motion until you redisplay the SELECT GANTRY TARGET window or select the same axis for manual motion.

You can select multiple axes for simultaneous motion.

Automatic motion is not allowed when the PRO is set for raw scale or if an HWFA or STPS interlock is active.

While a motor axis is selected for automatic motion, the system highlights its position readout on a light grey background at the bottom of the screen. As motion occurs, the highlighted readout changes in real-time.

Using the Hand Pendant

Once you enter target positions and press F2, the selected motor(s) can also be driven from a hand pendant in the treatment room. To start and maintain motion, hold in both motion enable bars on the side of the pendant, then press the AUTO key on the pendant paddle. To stop motion, release either or both controls.

Step Action Result1. Select the MOTOR menu bar


The MOTORS window (Figure 70) appears.

2. Select Manual motion, then press Enter.

The SELECT MOTOR AXIS window (Figure 71) appears.

3. Highlight the motor axis that you want to move, then press Enter.This action corresponds to pressing a motion selection key on the dedicated keyboard in operating modes. Refer to the Clinical User Guide for the Novalis Dose Delivery System.

4. To start motion, hold down a directional motion control key and the MOTION ENABLE bar on the dedicated keyboard.

5. To stop motion, release either the motion control key or motion enable bar, or both.



Moving the Gantry Automatically

To move the Gantry automatically

Figure 72: SELECt GANTRY TARGET Window

Step Action Result1. Select the MOTOR menu bar option on



2. Select Gantry automatic, then press Enter. The SELECT GANTRY TARGET window (Figure 72) appears.

3. Use the Enter or arrow keys to move the highlight to the axis you want.

4. Enter the target position.The decimal place is optional.

5. After you enter all target positions, press F2 on the alphanumeric service keyboard.

• Collimator jaw motion starts immedi-ately when you press F2.

• The window closes.6. To rotate the gantry or collimator, hold

down the MOTION ENABLE bar on the dedicated keyboard to start and maintain motion until the target position is reached.

7. To stop rotation of the gantry or collimator, release the MOTION ENABLE bar.

8. To stop motion of a collimator jaw before it reaches its target position:• Redisplay the SELECT GANTRY

TARGET window.or

• Select the same jaw axis in manual motion mode (page 84).



12.4 Moving the Couch Automatically

General Description

Use the Couch automatic option in the MOTORS window to move the couch automatically in service mode.

SELECT COUCH TARGET Window

When you select the Couch automatic option in the MOTORS window (Figure 70), the SELECT COUCH TARGET window (Figure 73) appears. Use this window to select the couch motion and target position.

About selecting a Couch Motion

Each couch position remains selected for automatic motion until you redisplay the SELECT COUCH TARGET window or select the same couch motion for manual motion.

You can select multiple couch motions for simultaneous motion.

Automatic motion is not allowed when the PRO is set for raw scale or if an HWFA or STPS interlock occurs.

While a couch motion is selected for automatic motion, the system highlights its position readout on a light grey background at the bottom of the screen. As motion occurs, the highlighted readout changes in real-time.

Figure 73: SELECT COUCH TARGET Window

To move the Couch automatically Step Action Result

1. Select the MOTOR menu bar option on the service mode screen (Figure 3), then press Enter.


2. Select Couch automatic, then press Enter. The SELECT COUCH TARGET window (Figure 73) appears.

3. Use the Enter or arrow keys to move the highlight to the couch motion you want.

4. Enter the target position.The decimal place is optional.

5. After you enter all target positions, press F2. The window closes.

6. Hold down the MOTION ENABLE bar on the dedicated keyboard.

Motion starts and continues until you release the MOTION ENABLE bar.

7. To stop motion before the couch reaches its target position:• Release the MOTION ENABLE bar.

or

• Redisplay the SELECT COUCH TARGET window.

or

• Select the same couch motion in man-ual motion mode (page 84).


Initiating Motion While the Beam is On

12.5 Initiating Motion While the Beam is On

To initiate Motion while the Beam is on

Step Action1. Use the Set all option in the SET UP window to enter the beam-on parameters

(page 25).2. Use the Override intlks option in the INTLK/TRIG/LT window to override the KEY

and MOTN interlocks (page 66).3. Use the MOTORS window to choose the motion(s) desired during the beam on. The

motion(s) can be automatic or manual (page 83).4. Turn the DISABLE/ENABLE key on the dedicated keyboard to the ENABLE position.

5. Select the BEAM CTRL option in the menu bar and confirm beam-on (page 31).

6. Press the MOTION ENABLE bar.


Calibrating PROs

13 Calibrating PROs



In this Chapter


13.1 Selecting PRO Scale

General Description

Use the Select PRO scale option in the CALIBRATION window in service mode to select a scale for PRO displays.

SELECT PRO SCALE Window

When you select the Select PRO scale option in the CALIBRATION window (Figure 21), the SELECT PRO SCALE window (Figure 74) appears.

Raw Scale In raw scale, the actual voltage levels appear for axis position read-outs. With this readout setting, software motion limits are disabled and automatic motion and symmetric jaw motion are not allowed.

Internal Scale Internal scale is the same as Varian scale, except that the range of gantry axis rotation appears as -5 to 365.

Varian and IEC Scales

Varian and IEC scales are alternative conventions for displaying scales axis positions in clinical mode displays. One of these conventions is set at the factory for your Novalis Dose Delivery System:

• In Varian scale, when the gantry is rotated to 0 degrees, the head is at the 6 o'clock position. It is at 12 o'clock for 180 degrees. Varian scale increases counterclockwise.

Topic PageSelecting PRO Scale page 89Using the Analog Scaling Option page 90Calibrating PROs page 91


Using the Analog Scaling Option

• In IEC scale. when the gantry is rotated to 0 degrees. the head is at the 12 o'clock position. It is at 6 o'clock for 180 degrees. IEC scale increases clockwise.

To select PRO Scale

Figure 74: SELECT PRO SCALE Window

13.2 Using the Analog Scaling Option

General Description

The Analog Scaling option in the CALIBRATION window in service mode provides the following options.

Revised CALIBRATION Window

When you select Analog Scaling from the CALIBRATION window (Figure 21), a revised CALIBRATION window (Figure 50) appears. Use this window to select an option.




2. Select Select PRO scale, then press Enter. The SELECT PRO SCALE window (Figure 74) appears.

3. Highlight the scale you want, then press Enter. or Enter the index number that precedes the scale you want, then press Enter.

The window closes.

Option Description PageReadout Calibration Calibrate primary and secondary PROs page 91

Alg Meter CalibrationDisplay the gain and offset factors applied to the raw value for a selected machine meter

page 72

PRO Meter Calibration Display the gain and offset factors applied to the raw value for a selected PRO meter page 73


Calibrating PROs

13.3 Calibrating PROs

General Description

Use the Readout Calibration option in service mode to calibrate the primary and secondary PROs.


When you select the Readout Calibration option, the SELECT MOTOR AXIS window (Figure 75) appears. Use this window to select the motor axis you want to calibrate.

Canceling Calibration

To cancel calibration and return to the menu bar without saving the new values, even during the current session, press the Clear key on the pendant or the Esc key on the keyboard.

Saving Calibration Values

The system discards new readout calibration values at the end of the current service mode session unless you save the new data to the console hard disk before you leave service mode. Use the Write data to disk function in the CALIBRATION window to save this data (page 53).

About Calibrating Readouts

You must calibrate independent jaws independently. If you try to select FIELD Y or FIELD X with independent jaws on the Novalis Dose Delivery System, the system displays:

Must Calibrate Jaws Independently

You cannot mechanically calibrate jaws that are limited to symmetric operation independently. If you try to select an individual jaw, the system displays:

Lower Independent Jaws Not Enabled

When you select a motor axis, the position readouts at the bottom of the screen change to raw scale.

Using the Hand Pendant

When you select a motor axis to calibrate, the system activates several keys on the hand pendant. This allows you to calibrate the readouts without leaving the treatment room. You can also use the pendant redirection function in the UTILS window to manually activate the pendant keys. Refer to chapter “Redirecting Pendant Keys” on page 93 for more information.

You must have a monitor in the treatment room to use the pendant for readout calibration. If you do not have one, you must use the alphanumeric service keyboard.

You can switch from pendant to keyboard calibration at any time by pressing Esc on the keyboard. Keyboard instructions appear on the screen in place of the pendant instructions (Figure 76). All key names are the same, except that Esc on the keyboard is the Clear key on the pendant.

PRO-PENDANT INSTRUCTIONS Box

The system displays the PRO-PENDANT INSTRUCTIONS box (Figure 76) when you select a motor axis for calibration. This box lists the pendant keys you use for readout calibration.

Capture Positions The system also displays the capture positions and saved values for the motor axis in a CALIBRATION window (Figure 77). Capture positions are the locations at which calibration values for the selected axis should be obtained.



Calibrating PROs

Figure 76: PRO-PENDANT INSTRUCTIONS Box

Figure 77: CALIBRATION Window

To calibrate a Position Readout Step Action Result



2. Select Analog Scaling, then press Enter. The Analog Scaling selection window appears.

3. Select Readout Calibration, then press Enter. The SELECT MOTOR AXIS window (Figure 75) appears.

4.Select the motor axis you want to calibrate, then press Enter.

The system displays the pendant or keyboard key instructions and the capture and saved values for the motor axis.

5. Move the motor axis to each capture position listed and verify its alignment.

6. When the motor axis is aligned at the true capture position, use the down arrow key to highlight the same position on the screen.

7. Press Enter to capture the value. The value appears as an unscaled number.

8. After you capture values for all the system calculates the positions, press the End key (Shift/Enter on the pendant).

The system calculates the linear deviation among all the capture positions and displays the relative deviation numerically.

• Ideally, this number should be less than 1.• If it is greater than 2, you should repeat the calibration after carefully realigning

any or all of the capture positions.9. Press Enter or Esc. The windows close.


Redirecting Pendant Keys

14 Redirecting Pendant Keys



General Description

Use the Pendant redirection function in the UTILITIES window in service mode to activate certain keys on the pendant so they perform keyboard functions. Then, you can run some service mode features from the treatment room, such as overriding various interlocks (page 66). However, you cannot run features that require numeric entries, and you cannot select the BEAM CTRL menu bar option.

Keys The following table lists the keyboard keys and the corresponding pendant key that is activated.

To turn on Pendant Redirection

To turn off Pendant Redirection

To turn off the Pendant redirection function, press any key on the service keyboard.

Keyboard Key Pendant Key

Right Arrow Horizontal Arrow

Left Arrow Shift / Horizontal Arrow

Down Arrow Vertical Arrow

Up Arrow Shift / Vertical Arrow

Enter Enter

End Shift / Enter

Esc Clear




2. Select Pendant redirection, then press Enter.

• The system activates the pendant keys.• The window closes.



Setting Service Mode Timeout

15 Setting Service Mode Timeout



General Description

Use the Communication timeout option in the UTILITIES window in service mode to change the communication timeout value for service mode.

Definition of Communication Timeout

The communications timeout value defines the maximum time interval allowed between control commands exchanged by the console computer and the controller. This timeout value applies only during the current service mode session. The system discards any timeout value you enter when you leave service mode.

COMMUNICA- TIONS Window

When you select Communication timeout from the UTILITIES window, the system displays the COMMUNICATIONS window (Figure 78).

Default Timeout The default communications timeout is 60000 (in 0.6 second value units).

If the Timeout runs out

If the timeout runs out, a communications failure occurs and the system activates a CTRL interlock. To recover from a CTRL interlock, execute the diagnostic self-tests (page 32).

To set the Timeout Value

Figure 78: COMMUNICATIONS Window

Step Action Result1. Select the UTLS menu bar option on the



2. Select Communication timeout, then press Enter.

The COMMUNICATIONS window (Figure 78) appears.

3. Enter the new timeout value, then press Enter. The window closes.



Using Remote Communications

16 Using Remote Communications

In this Chapter

About this Chapter The options described in this chapter are available in communications mode. Refer to chapter “Using Modes” on page 11 for general procedures for entering and exiting communications mode.

You must use the alphanumeric service keyboard in communications mode.

The morning checkout, dynamic beam delivery, and event logs available through communications mode are intended for service personnel who evaluate machine performance trends. Interpreting the data in these logs requires considerable service experience.

16.1 Using the Modem Connect Option

General Description

The Modem Connect option in communications mode gives BrainLAB service personnel remote access to the morning checkout, dynamic beam delivery, and event logs that are on your console computer hard disk. This option is available only if the remote diagnostic communications feature has been installed on your system.

How BrainLAB uses Modem Connect

BrainLAB uses Modem Connect in two ways:

• To review your logs online• To copy your logs (file transfer) for later review

Reviewing Logs Online

BrainLAB is generally the active user during online review, even if you are reviewing the information together.

Once BrainLAB establishes communications, the remote service person simultaneously sees an exact duplicate of what you see.

Both keyboards (yours and BrainLAB's) can control the program, and both monitors respond the same way, displaying the same data. It is as if you and BrainLAB were sharing a single keyboard and monitor. Because of this unity, you see various displays on your monitor as BrainLAB uses the program.

BrainLAB notifies you if any action is required from you.

File Transfers Once you select Modem Connect, a file transfer requires no action from you, so that it can be done after normal working hours.

Communicating during a Session

You and BrainLAB communicate during a connect session by typing messages in the chat window (page 98).

Displaying Logs before a Session

Until BrainLAB establishes the communications session, you can display your logs the same way you do with Translator Only (page 60).

Topic PageFigure 16.1Using the Modem Connect Option page 97Starting and Ending a Session page 98The Chat Window page 98Transferring Log Files to BrainLAB page 99Printing a Screen page 100


Starting and Ending a Session

16.2 Starting and Ending a Session

Before the Session begins

Contact the service center and select a time to establish the remote diagnostic communications. The service center will ask you to put your machine in Modem Connect mode by that time.

To select the Modem Connect Option

How the Session is established

Ending a Modem Connect Session

As the active user of Modem Connect, BrainLAB terminates the session when the review and/or copy is complete.

16.3 The Chat Window

General Description

You and the BrainLAB service representative use the Chat window (Figure 79) for on-screen dialogue whenever a connection is established.

To call up the Chat Window

If you need to call up the Chat Window, press Ctrl. right-Shift. (Hold down the Ctrl key and the Shift key on the right side of the keyboard at the same time).

To remove the Chat Window

To remove the chat window, press F10.

Using the Chat Window

BrainLAB's comments appear in the part labeled Remote Operator's Dialogue. Whatever you enter appears in the part of the window labeled Your Dialogue.

The chat window overlays the existing screen.

Use the up and down arrow keys to move the chat window between the top and bottom of the screen so you can see the part of the underlying screen that you want. This movement is independent and appears on your screen only.

You cannot manipulate the underlying screen while the chat window is displayed.How BrainLAB uses the Chat Window

At a minimum, BrainLAB uses the chat window:

• When communications are established• Before a file transfer• When a session is going to be disconnected

Step Action1. Select the COMMUNICATIONS option in the SELECT MAJOR MODE window

(Figure 1).2. Use the alphanumeric service keyboard to select the Modem Connect option in the

Modem Connect selection window (Figure 8).

Phase What Happens1. The communications software is loaded.

2. The message Compressing Logs . . . flashes at the lower right of the screen.

3. The message COMMUNICATIONS ENABLED appears along with the Translator selection window (Figure 9).

4. BrainLAB initiates a call to your modem.

5. BrainLAB informs you that communications have been established by invoking the chat window and typing a message to that effect.


Using Remote Communications

Figure 79: Chat Window

16.4 Transferring Log Files to BrainLAB

General Description

A control screen appears when BrainLAB invokes the file transfer program to copy your logs. Once the copy process begins, a display similar to Figure 80 appears.

What appears on your Screen

• During the copying, the kind of file being copied is shown in the middle of the screen. For example:

Reading File: C:CFGS.ZIP (configuration files)

Reading File: C:LOGS.ZIP (event logs)

Reading File: C:MCS.ZIP (morning checkout logs)

Reading File: C:DYNALOGS.ZIP (dynamic beam delivery logs)

• Below that, a bar graph indicates the percentage of the copy that has been completed.• How Long It Takes to Transfer Files

The time it takes to copy your files varies according to the number of logs being copied and the amount of data in each log. Generally, the process should not take more than 15 minutes.

Figure 80: Sample File Transfer Display


Printing a Screen

16.5 Printing a Screen

To print a Screen To print any screen in communications mode, press the Print Screen key on the alphanumeric service keyboard.

What the Printout looks Like

The printout is an exact duplicate of whatever is currently displayed. Check the data alignment of a scrollable display before you print.


Interlocks

17 Interlocks

The following is a list of interlocks that the Novalis Dose Delivery System uses to alert you to system conditions and errors.

ACC (1) Collimator accessory selected at the console does not match the mounted collimator accessory or (2) a mounted accessory is improperly positioned. (Minor)

CDOS External customer-defined dosimetry interlock has tripped (not asserted during the check cycle). (Minor)

CKFA During the check cycle, the following interlocks were activated by the controller and one or more was not detected by the console: DOS2, EXQ1, EXQ2, EXQT, ION1, ION2, LVPS, XDRS, XDP1, XDP2, XDR1, XDR2, DOS1, TIME, and DS12. The DOS1 and TIME interlocks are activated with the user-selected values for the treatment to be performed. The remaining interlocks are asserted as described in this appendix. (Dosimetry)

CKTO Check cycle not completed before time-out. (Dosimetry)

CLFA During the calibration cycle, after the ion chamber is injected for 0.1 minutes, MU 1 or MU 2 is outside the range of 100 MU to 110 MU (for dose rates less than 500 MU/min.) or 190 MU to 210 MU (for dose rates greater than 500 MU/min.) or the injection time was not exactly 0.1 minutes. (Dosimetry)

CLTO Calibration cycle not completed before time-out. (Dosimetry)

CMNR External customer-defined minor interlock is active. (Minor)

CNF (1) Console controller did not receive the required amount of configuration data from the console computer or (2) The position readout scale is set to raw meter data. (Minor)Interlock

CTRL Abnormal operating condition detected in the console control computer. (Major)

DOOR Treatment room door is open. (Minor)

DOS1 Number of accumulated monitor units in the primary dosimetry channel equals the value set for MU 1. DOS1 causes normal beam termination. The phrase NORMAL TREATMENT COMPLETE appears on the console. (Minor)

DOS2 For all clinical mode treatments, the number of accumulated monitor units in the secondary dosimetry channel is 10 percent or 25 MU (whichever is less) greater than the preset dose. Minimum value is 1 MU greater than the preset dose. (Dosimetry)

DPSN Intended dose and position and actual dose and position are not in agreement during dynamic treatment. (Minor)

DS12 (1) Readings for MU 1 and MU 2 do not compare to within 5 percent or 1 MU of one another, whichever is greater, or (2) failure of the dosimetry timers. (Dosimetry)

DSFA Console computer detected that the actual dose is greater than the set dose. (Dosimetry)


EXT (1) Novalis Treat (RV system) is preventing the Novalis Dose Delivery System operation, (2) Novalis Dose Delivery System and RV setups do not agree, (3) Novalis Treat has detected a malfunction, or (4) Novalis Treat is uploading data from the console. (Minor)

FLOW (1) Flow of cooling water is below limits, (2) pulse transformer oil level is below limits.

GAS Waveguide dielectric gas pressure is less than 30 psig. (Minor)

HVCB (1) High-voltage circuit breaker (HVPS) is open, (2) modulator crowbar is in the de-energized position, (3) stand door, or (4) screen switches are open. (Minor)

HVOC (1) Peak charging current of the high-voltage power supply exceeds 7 amperes or (2) average charging current of the high-voltage power supply exceeds 1.5 amperes. (Minor)

HWFA A control processor detection of a hardware failure that is of minor magnitude, usually PRO. (Minor)

ION1 Radial ion chamber power supply voltage is less than 400 volts. (Dosimetry)

ION2 Transverse ion chamber power supply voltage is less than 400 volts. (Dosimetry)

IPSN For arc treatment, gantry not within + 0.2 degree of start angle.

KEY DISABLE/ENABLE keyswitch on the dedicated keyboard is in the DISABLE position. (Minor)

LVPS A low-voltage power supply (+12, +15, -15, or +5 volts) has failed. (Dosimetry)

MFIL Malfunction in magnetron filament circuit. MFIL is disabled for 15 seconds after the POWER key is turned to ON. (Major)

MGNT (1) Magnetron electromagnet voltage is 7 percent above or below nominal; or (2) magnetron electromagnet current is 2 percent above or below nominal (not all Novalis Dose Delivery Systems use this interlock). (Minor)

MLC Multileaf collimator is preventing the Novalis Dose Delivery System operation. (Minor)

MOD Reverse voltage on the modulator pulse-forming network exceeds 9.5 volts at the input to the sensing circuit. (Minor)

MOTN Motion detected on an axis not selected for dynamic therapy. (Minor)

PNDT (1) Hand pendant is not in the pendant holder on the treatment couch or (2) treatment couch longitudinal and/or lateral brakes are not engaged. (Minor)

PUMP (1) Water tank level is low or (2) water system temperature exceeds 50 + 2 degrees celsius. The PUMP RESET switch on the primary power distribution panel clears the PUMP interlock if the water level and temperature in the stand are within limits. (Major)

SYM1 Radial symmetry exceeds 2 percent of symmetrical adjustment. (Dosimetry)

SYM2 Transverse symmetry exceeds 2 percent of symmetrical adjustment. (Dosimetry)

STPS Stand power supplies or motor power supply failure. (Minor)


Interlocks

TDLY A time delay up to 12 minutes for component warm-up is active. The delay starts when the POWER key is turned from STANDBY to the ON position. The length of the delay varies with how long the machine is off. (Minor)

TIME Displayed beam-on time is greater than or equal to the value set for TIME. (Minor)

UDR1 Radial dose rate is less than 80 percent of the set value. UDR1 is disabled for the first 9 seconds after beam-on. (Minor)

UDR2 Transverse dose rate is less than 80 percent of the set value. UDR2 is disabled for the first 9 seconds after beam-on. (Minor)

UDRS The actual served dose rate, over a given period of time, was below that which was intended. (Minor)

VAC1 Vacuum in the accelerator exceeds 1.5 milliampere VacIon pump current level. (Major)

VAC2 Accelerator pump current exceeds set values. (Minor)

XDRS The actual served dose rate, over a given period of time, was above that which was intended. (Dosimetry)

YLD The ratio of peak target current to peak in chamber current deviates 7 percent from its present point. (Dosimetry)



Glossary

18 Glossary

Accelerator See linear accelerator.

Backup A duplicate or secondary copy of the information on the console hard disk to keep in case the main system fails.

Varian Scale A position readout (PRO) scale that displays 180 degrees when the gantry is at the 12 o’clock position (0 degrees at the 6 o’clock position). The letter E after a gantry readout indicates extended range (across the 0-degree point).

Calibration Determination of the relative accuracy of a measuring instrument by comparing it to a standard to discover the necessary correction factors.

Calibration Cycle Internally programmed test routine in which the controller verifies that the calibrated dosimetry values are reasonable for the energy selected. Occurs prior to beam-on after verification of the treatment parameters. See also Check cycle.

Check Cycle Internally programmed test routine in which the controller tests the operation of the dose counters and verifies that the dosimetry interlocks can be activated. Occurs immediately after the calibration cycle. See also Calibration cycle.

Collimator Sets of metal blocks, fixed and movable, in the treatment head that limit the treatment field to a specific size.

DBD (Dynamic Beam Delivery) An application in which an axis moves and dose is varied during beam-on. Arc therapy, in which the gantry is rotated is a DBD application. In DBD application, the dose is coordinated with the speed and position of the dynamic axis.

Default Standby data the computer uses when a parameter (or program) is not specified.

Disk A magnetic storage medium used for storing files on a computer. May be a floppy(removable) or hard (nonremovable) disk.

Dosimetry Interlock Identifies a machine condition in which the ability of the Novalis Dose Delivery System to deliver or measure dose may be impaired. Beam is terminated immediately and remains inhibited until a special password is entered.

Dynamic Arc Therapy

Radiation therapy in which the source of radiation is moved through a limited arc about the patient during treatment. In this way, a larger dose is built up at the center of rotation within the patient’s body than on any area of the skin. Multiple arcs may be used. Synonymous with arc treatment and rotation therapy.

Dynamic Treatment A treatment during which the collimator or gantry moves while the beam is on and both the dose rate and the speed of the axis are continually adjusted by the control system.

Field A plane section of the beam perpendicular to the beam axis.

Field Light A light system that illuminates an area on the patient’s body identifying the area of therapy beam entry.


Field Size The size of an area irradiated by a given beam, usually measured by one of the following conventions: geometric field size, which measures the geometric projection on a plane perpendicular to the central axis, or physical field size, which measures the area included within the 50 percent maximum dose isodose curve at the depth of maximum dose.

Hard Disk See Disk.

IEC A position readout (PRO) scale that displays 0 degrees when the gantry is at the 12 o’clock position (180 degrees at the 6 o’clock position). The letter E after a gantry readout indicates extended range (across the 180-degree point).

Interlock An electrical, software, or mechanical function that prevents the operation of the Novalis Dose Delivery System or the application of power to its primary systems until one or more preliminary conditions have been met.

Internal Scale A position readout (PRO) scale used in service mode. Internal scale is the same as Varian scale except that the actual rotational position beyond the 0- and 360-degree point is displayed (such as -5 and 365) instead of using the letter E for extended range.

Isocenter The intersection of the gantry axis of rotation and the collimator bearing axis. If the treatment site is aligned at isocenter during arc therapy, the site dose does not change as the gantry rotates. On the Novalis Dose Delivery System, isocenter is located at a TSD of 100 centimeters.

LED (Light-emitting Diode) A semiconductor device that gives off visible or infrared light when activated. Used in pendant displays.

Linear Accelerator A series of adjacent cylindrical cavities (called the guide), arranged in a straight line with continually increasing spacing between the cavities. Microwave frequency electromagnetic fields are generated and travel down the waveguide in a wave of increasing velocity. A bunch of electrons injected at precisely the right time is accelerated by riding the crest of this wave. The electrons produce X-rays by striking a target at the far end of the tube.

Major Interlock Identifies a machine malfunction that could damage the Novalis Dose Delivery System if not corrected. When a major interlock is activated, the machine returns from ON to STANDBY mode. Primary power to high voltage circuits is removed.

Microprocessor Computer element (usually a single chip) containing control circuitry and arithmetic and logic functions. Suitable for use as the central processing unit (CPU) of a microcomputer or a dedicated automatic control system. Microprocessors accept coded instructions for execution. The instructions may be entered, integrated, or stored internally.

Microwave Radio waves in the frequency range of approximately 1000 megahertz (MHz) and upward. RF energy in the Novalis Dose Delivery System is tuned to 2998 MHz.

Minor Interlock Identifies a machine malfunction that prevents beam-on. Minor interlocks are self-clearing before beam-on when the condition has been corrected.

Monitor unit (MU) A unit of radiation exposure. A table for the conversion of monitor units into units of absorbed dose (gray or rad) can be generated by a dose calibration of the machine by a qualified physicist.


Glossary

Motion Enable Switch

A safety switch that allows motion of certain motorized functions only so long as the operator continues to press the switch.

Override To go around an automatic control system (like the interlock system) intentionally. To bridge a functional stage of the control system.

Parameter Any of a set of physical properties whose values determine the characteristics or behavior of something. An operating value or coefficient entered in a data space on the console screen that falls within the range of acceptable values.

Partial Treatment A treatment set up to complete a dynamic treatment that was terminated before completion. Other treatments may have been given in the interim. During a partial treatment, the dynamic axis travels the complete path planned for the treatment, but the beam is not turned on until the axis reaches the position where the original exposure was previously interrupted. The system uses all the original treatment parameters, plus the monitor units for the current treatment (MU remaining from the interrupted treatment) to compute the point in the path where dose delivery is to be resumed.

Password A number or word used to gain entry to a certain program or a restricted part of a program. Passwords are required for clearing dosimetry interlocks and for entering service and physics mode.

PRO (Position Read Out) Digital display of the motor axis positions from the Novalis Dose Delivery System, especially those of the gantry and collimator. Values are displayed in various scale conventions, including IEC and Varian. Also the system of position-sensing potentiometers read by an analog to digital converter in the console electronics cabinet.

Radio Frequency (rf)

Any frequency at which coherent electromagnetic radiation of energy is possible. Usually considered to denote frequency above 150 kilohertz and extending up to the infrared range.

Raw Scale A position readout (PRO) scale used in service mode that displays actual voltage levels for position readouts potentiometers.

Real Time Performance of a computerized operation that gives the impression of instantaneous response.

Source Synonymous with target.

Source Axis Distance

(SAD) Synonymous with target-axis distance.

Source Surface Distance

(SSD) Synonymous with target-skin distance.

Target A metal plate placed in the beam of high-speed electrons to produce X-rays.

Target Axis Distance

(TAD) The distance measured along the central axis from the center of the front surface of the target to the isocenter.

Target Skin Distance

(TSD) The distance measured along the central axis from the center of the front surface of the target to the surface of the irradiated object.

X-axis Dimension of the treatment field formed by the opening between the lower (X) collimator jaws. Lower jaw X1 is the jaw located to the right of the range finder assembly.



Index

Index

Aaccessories, selecting ......................................... 30ADD A TREATMENT option ............................... 41adding a treatment ............................................ 41ADJUST DYNAMIC PARAMS window................... 78ADJUST MOTORS window............................ 77, 78Alg Meter Calibration option ........................... 72, 90alphanumeric service keyboard .................... 11, 23, 24ANALOG DISPLAY window .......................... 70, 71ANALOG METERS display ................................. 70

content ....................................................... 70Analog option ............................................ 70, 71Analog PRO meters, displaying values...................... 71Analog Scaling option .............................. 72, 73, 90Analog Scaling selection window ...................... 72, 73arc mode

parameters ................................................... 27asymmetric mode ............................................. 84automatic mode ............................................... 84

Bbacking up

configuration dataphysics mode .............................................. 56

event logs .................................................... 58morning checkout logs...................................... 59

BACKUP CHECKOUT LOGS option ...................... 59BACKUP CONFIGURATION option ...................... 56BACKUP EVENT LOGS option ............................ 58backup logs, displaying....................................... 62beam

terminating................................................... 31turning on .................................................... 31

BEAM CTRL option .................................... 31, 93beaming on .................................................... 31beam-on

parameters ................................................... 14state........................................................... 16

CCALIB option ................................................. 32Calibrate dosimetry option ................................... 32calibrating PROs .............................................. 91calibration

canceling ..................................................... 91saving values ................................................ 91using the hand pendant ..................................... 91

CALIBRATION window...................... 32, 77, 91, 92Analog Scaling option ............................ 72, 73, 90DBD Parameters option .................................... 78Motor parameters option.................................... 77revised................................................... 72, 90

cancelingcalibration ................................................... 91motion selections ...................................... 84, 85

capture positions .............................................. 91changing passwords .......................................... 38Chat window ............................................. 98, 99choosing a mode .............................................. 26common RAM

displaying contents ......................................... 80COMMON RAM MEMORY window...................... 80communication timeout

definition .................................................... 95Communication timeout option.............................. 95communications mode

description................................................... 23entering ...................................................... 24error messages .............................................. 24logs

dynamic beam delivery ................................... 23event ....................................................... 23morning checkout ......................................... 23

modem connect ............................................. 24printing screens ............................................ 100selecting ..................................................... 24viewing logs................................................. 60

COMMUNICATIONS option ............................... 98communications sessions

ending........................................................ 98starting ....................................................... 98

COMMUNICATIONS window ............................. 95configuration data

downloading................................................. 51physics mode

backing up ................................................. 56restoring ................................................... 57saving ...................................................... 54

printing ...................................................... 63restoring ..................................................... 52saving in service mode ..................................... 53

configuringdate format .................................................. 46default dose rate............................................. 36default time factor .......................................... 37interlocks .................................................... 45maximum dose .............................................. 39RV interface................................................. 49time format .................................................. 47

CONFIRM BEAM ON window............................. 31control parameters

DBD ......................................................... 78motor axis ................................................... 77

control system timers, displaying status .................... 81controlling motions in service mode ........................ 83couch

moving automatically....................................... 87selecting motion............................................. 87


Index

Couch automatic option ...................................... 87CTRL interlock................................................ 95

error codes ................................................... 80CUSTOMER MINOR ACTIVE window ................... 45CUSTOMER MINOR option ................................ 45

Ddate

configuring format .......................................... 46setting current ............................................... 47

DATE FORMAT option...................................... 46DBD Parameters option ...................................... 78DBD. See Dynamic Beam Deliverydeactivating

interlocksdosimetry .................................................. 66non-dosimetry ............................................. 66

DEFAULT DOSE RATE option............................. 36DEFAULT DOSE RATE window........................... 36defaults

dose rate...................................................... 36time factor ................................................... 37

diagnosticsexecuting..................................................... 32file dump..................................................... 33

DIGITAL DISPLAY window................................ 74digital I/O lines

content ....................................................... 75displaying status............................................. 74

DIGITAL INPUTS display................................... 74Digital option.................................................. 74DIGITAL OUTPUTS display........................... 75, 76display

DIGITAL INPUTS.......................................... 74PRO METERS ......................................... 71, 72SELECT ANALOG METER .............................. 72

DISPLAY option.............................................. 70DISPLAY window............................................ 70

Analog option .......................................... 70, 71Digital option ................................................ 74Hex Window option......................................... 80MOTOR STATUS option ........................ 75, 76, 77Motor Status option ......................................... 75Timers option................................................ 81

displayingbackup logs .................................................. 62contents of common RAM ................................. 80current PRF .................................................. 82Dynamic Beam Delivery control parameters ............. 78machine meter gain and offset factors ..................... 72motor axis control parameters.............................. 77motor axis position limits................................... 79PRO meter gain and offset factors ......................... 73SPRO values................................................. 74status of

control system timers ..................................... 81digital I/O lines ............................................ 74I/O port..................................................... 81

valuesAnalog PRO meter........................................ 71machine analog meter .................................... 70

windows ..................................................... 18Disposal instructions ........................................... 7dose

maximum.................................................... 39setting........................................................ 29

for partial treatment....................................... 29testing

counters .................................................... 32timers ...................................................... 32

valid entries ................................................. 29Dose Count check option .................................... 32Dose intlk clear option ....................................... 66Dose option ................................................... 29dose rate

and repetition rate........................................... 29configuring default.......................................... 36

dosimetrytesting

dose counters .............................................. 32integration system......................................... 32

dosimetry testing.............................................. 32DOSIMETRY window....................................... 32Download current config option............................. 51downloading current configuration.......................... 51dynamic arc values ........................................... 15Dynamic Beam Delivery ..................................... 78

displaying control parameters.............................. 78dynamic beam delivery logs ................................. 23

sample list ................................................... 61viewing ...................................................... 60

dynamic treatment modes .................................... 26

Eending a communications session ........................... 98energy

selecting ..................................................... 28setting........................................................ 28

Energy option ................................................. 28ENTER ARC THERAPY DATA window ................. 27ENTER DATE window ...................................... 47ENTER FACTOR window .................................. 37ENTER MAXIMUM DOSES window ..................... 39ENTER MONITOR UNITS window ....................... 29ENTER ORIGINAL MONITOR UNITS window ......... 29ENTER PASSWORDS window............................. 38ENTER PRF FREQUENCY window....................... 82ENTER TIME window.................................. 30, 48entering

communications mode...................................... 24data in service mode ........................................ 18exposure time ............................................... 30I/O port address ............................................. 81monitor units ................................................ 29physics mode................................................ 20


Index

error messagesmode unavailable.................................. 11, 20, 24self-test not executed........................................ 33

event logs ...................................................... 23backing up ................................................... 58description ................................................... 58sample list ................................................... 62viewing....................................................... 60

Execute self-test option....................................... 32executing

diagnostics ................................................... 32exiting

physics mode ................................................ 20service mode................................................. 19

exposure time.................................................. 30

FF3 TOGGLE key.............................................. 45field light ...................................................... 68files

transferring to Varian ....................................... 99

GGantry automatic option ...................................... 85gantry, moving automatically ................................ 85General intlk clear option..................................... 66

HH/W TIMER OUTPUTS window ...................... 81, 82hand pendant

using in service mode ....................................... 85using to calibrate ............................................ 91

Hex Window option .......................................... 80HWFA interlock .................................... 74, 85, 87

II/O port

address ....................................................... 81default ........................................................ 81displaying status............................................. 81

IEC scale....................................................... 89initiating motion while beam is on........................... 88Inputs option................................................... 74Integration cal option ......................................... 32interlocks

alphabetized list ............................................ 103configuring .................................................. 45CTRL ........................................................ 95deactivating

dosimetry .................................................. 66non-dosimetry ............................................. 66

HWFA ............................................. 74, 85, 87overriding ............................................... 13, 66

resetting...................................................... 13dosimetry .................................................. 66non-dosimetry ............................................. 66

status .................................................... 13, 66STPS .................................................... 85, 87TDLY (time delay) ......................................... 16

internal scale .................................................. 89INTLK/TRIG/LT option ..................................... 65INTLK/TRIG/LT window ......................... 65, 67, 68

Dose intlk clear option ..................................... 66General intlk clear option .................................. 66Lights off/on option......................................... 68Override intlks option ...................................... 66Triggers off/on option ...................................... 67

KKEYBOARD OVERRIDE window......................... 66keyboard, alphanumeric service ............................. 11keys, F3 TOGGLE............................................ 45

Llasers, turning off/on.......................................... 68Lights off/on option .......................................... 68Lights window ................................................ 68lights, turning off/on.......................................... 68Limits option .................................................. 79logs

displaying backup........................................... 62dynamic beam delivery..................................... 23event ......................................................... 23morning checkout........................................... 23reviewing online ............................................ 97viewing ...................................................... 60

Mmachine analog meters, displaying values .................. 70machine meter gain and offset factors, displaying ......... 72Machine option ............................................... 70manual mode .................................................. 83Manual motion option ........................................ 84maximum dose

configuring .................................................. 39definition .................................................... 39warning messages........................................... 39

MAXIMUM DOSES option ................................. 39MEMORY DISPLAY OFFSET window ................... 80menu bar

description................................................... 17options

BEAM CTRL ........................................ 31, 93CALIB ..................................................... 32DISPLAY ................................................. 70INTLK/TRIG/LT ......................................... 65MOTOR ................................................... 83service mode .............................................. 17SET UP .................................................... 25UTILS ..................................................... 32


Index

message line ................................................... 17meter

displaying machine meter gain and offset factors ........ 72displaying PRO meter gain and offset factors............. 73

METER CALIBRATION window ..................... 72, 73meter values

analog machine .............................................. 70Mode option ................................................... 26Modem Connect option....................................... 97modem connect selection window ........................... 24modes

asymmetric .................................................. 84communications ............................................. 23on ............................................................. 16physics ....................................................... 20ready ......................................................... 16service........................................................ 19

entering..................................................... 11setting ........................................................ 26standby ....................................................... 16symmetric.................................................... 84TDLY (time delay).......................................... 16

MODIFY A TREATMENT option.......................... 42modifying a treatment ........................................ 42monitor units .................................................. 15

default dose rate ............................................. 36entering ...................................................... 29original ....................................................... 29

morning checkout logs........................................ 23backing up ................................................... 59definition..................................................... 59sample list ................................................... 61viewing....................................................... 60

MORNING CHECKOUT option ............................ 40adding a treatment........................................... 41modifying a treatment....................................... 42removing a treatment ....................................... 43retrieving a treatment ....................................... 44

motion enable controls........................................ 84motions

canceling selections .................................... 84, 85controlling in service mode................................. 83initiating while beam is on ................................. 88troubleshooting problems................................... 75

motor axis...................................................... 91capture positions ............................................ 91displaying control parameters .............................. 77displaying position limits ................................... 79moving manually............................................ 84PROs ......................................................... 17selecting................................................. 77, 85

motor control limits ........................................... 79MOTOR option ............................................... 83Motor parameters option ................................ 77, 79MOTOR PARAMETERS window ..................... 77, 79MOTOR STATUS display ......................... 75, 76, 77

content ....................................................... 76Motor Status option ........................................... 75MOTORS LIMITS window.................................. 79

MOTORS window............................................ 84moving

couch automatically ........................................ 87gantry automatically ........................................ 85motor axis manually ........................................ 84

MU1 values ................................................... 15MU2 values ................................................... 15

Nnew treatment ................................................. 27

Oon mode ....................................................... 16options

ADD A TREATMENT..................................... 41Alg Meter Calibration ................................. 72, 90Analog .................................................. 70, 71Analog Scaling.................................... 72, 73, 90BACKUP CHECKOUT LOGS............................ 59BACKUP CONFIGURATION............................ 56BACKUP EVENT LOGS.................................. 58BEAM CTRL .......................................... 31, 93CALIB....................................................... 32Calibrate dosimetry ......................................... 32Communication timeout.................................... 95COMMUNICATIONS ..................................... 98Couch automatic ............................................ 87CUSTOMER MINOR...................................... 45DATE FORMAT ........................................... 46DBD Parameters ............................................ 78DEFAULT DOSE RATE .................................. 36Digital ....................................................... 74DISPLAY ................................................... 70Dose.......................................................... 29Dose Count check........................................... 32Dose intlk clear ............................................. 66Download current config ................................... 51Energy ....................................................... 28Execute self-test............................................. 32Gantry automatic............................................ 85General intlk clear .......................................... 66Hex Window ................................................ 80Inputs ........................................................ 74Integration cal ............................................... 32INTLK/TRIG/LT ........................................... 65Lights off/on ................................................ 68Limits ........................................................ 79Machine ..................................................... 70Manual motion .............................................. 84MAXIMUM DOSES ....................................... 39mode ......................................................... 26Modem Connect ............................................ 97MODIFY A TREATMENT................................ 42MORNING CHECKOUT.................................. 40MOTOR ..................................................... 83Motor parameters ...................................... 77, 79Motor Status................................................. 75


Index

Outputs....................................................... 75Override intlks............................................... 66Parameters ................................................... 77PASSWORDS............................................... 38Perform repeat............................................... 31PRF Frequency .............................................. 82PRO .......................................................... 71PRO Meter Calibration ........................... 71, 73, 90Read I/O data ................................................ 81Readout Calibration.................................... 90, 91REMOVE A TREATMENT ............................... 43Rep rate ...................................................... 29RESTORE CONFIGURATION ........................... 57RV INTERFACE ........................................... 49Select PRO scale ............................................ 89Set all......................................................... 25SET DATE .................................................. 47Set PRF frequency .......................................... 82SET TIME ................................................... 48SET UP ...................................................... 25SPRO......................................................... 74Time.......................................................... 30TIME FACTOR............................................. 37TIME FORMAT ............................................ 47Timers........................................................ 81Triggers off/on .............................................. 67Update saved config ........................................ 52UTILS........................................................ 32Write data to disk ........................................... 53

original monitor units ......................................... 29Outputs option................................................. 75Override intlks option......................................... 66overriding

interlocks................................................ 13, 66

Pparameters

arc mode ..................................................... 27beam-on...................................................... 14displaying

DBD control ............................................... 78for positioning motors .................................... 75motor axis control ......................................... 77

real-time ..................................................... 15resetting ...................................................... 31setup.......................................................... 15

Parameters option ............................................. 77partial treatment ............................................... 27

setting dose .................................................. 29passwords

changing ..................................................... 38PASSWORDS option......................................... 38pendant

redirecting keys.............................................. 93Pendant redirection function ................................. 93

turning off ................................................... 93Perform repeat option......................................... 31physics mode .................................................. 20

configuration databacking up ................................................. 56changed .................................................... 21restoring ................................................... 57saving ...................................................... 54

description................................................... 20entering ...................................................... 20event logs

backing up ................................................. 58exiting ....................................................... 20morning checkout logs

backing up ................................................. 59operating in.................................................. 22password..................................................... 21password window........................................... 21printing configuration data ................................. 63

position readouts. See PROspositioning motors

displaying parameters ...................................... 75PRF

displaying current........................................... 82PRF Frequency option........................................ 82PRF FREQUENCY window................................. 82printing

communications mode screens............................ 100configuration data........................................... 63

PRO Meter Calibration option..................... 71, 73, 90PRO METER CALIBRATION window.................... 73PRO meter gain and offset factors

displaying.................................................... 73PRO METERS display .................................. 71, 72

content ....................................................... 71PRO option.................................................... 71PRO scale

selecting ..................................................... 89setting........................................................ 79

PRO-PENDANT INSTRUCTIONS box .............. 91, 92PROs........................................................... 17

calibrating ................................................... 91

RRAM

displaying contents of common............................ 80raw scale....................................................... 89Read I/O data option.......................................... 81READING I/O DATA window.............................. 81Readout Calibration option ............................. 90, 91ready mode .................................................... 16ready state ..................................................... 16real-time parameters .......................................... 15redirecting pendant keys ..................................... 93remote diagnostic communications.......................... 97REMOVE A TREATMENT option......................... 43removing a treatment ......................................... 43Rep rate option................................................ 29repetition rate

and dose rate ................................................ 29selecting ..................................................... 29setting........................................................ 29


Index

resettinginterlocks..................................................... 13

dosimetry .................................................. 66non-dosimetry ............................................. 66

parameters ................................................... 31RESTORE CONFIGURATION option ..................... 57restoring

configuration data, physics mode .......................... 57original configuration ....................................... 52

retrieving a treatment ......................................... 44reviewing logs online ......................................... 97revised CALIBRATION window....................... 72, 90RV interface

configuring .................................................. 49RV INTERFACE option ..................................... 49RV INTERFACE? window .................................. 49

Ssample file transfer display................................... 99SAVE CONFIG DATA CHANGES window ......... 53, 54SAVE TO DISK ? window................................... 54saving

calibration values............................................ 91configuration data

physics mode .............................................. 54service mode............................................... 53

scalesIEC ........................................................... 89internal ....................................................... 89PRO .......................................................... 89raw ........................................................... 89Varian ........................................................ 89

screen, service mode ..................................... 12, 13SELECT ANALOG METER display ....................... 72SELECT ANALOG METER window ...................... 72SELECT CONFIGURATION window ..................... 22

CUSTOMER MINOR option .............................. 45DATE FORMAT option.................................... 46DEFAULT DOSE RATE option........................... 36MAXIMUM DOSES option ............................... 39MORNING CHECKOUT option .......................... 40PASSWORDS option....................................... 38RV INTERFACE option.................................... 49TIME FACTOR option ..................................... 37TIME FORMAT option .................................... 47

SELECT COUCH TARGET window....................... 87SELECT DATE FORMAT window......................... 46SELECT ENERGY window ................................. 28SELECT GANTRY TARGET window ................ 85, 86SELECT MAJOR MODE window ..................... 11, 20SELECT MODE window .................................... 26SELECT MOTOR AXIS window ...... 77, 78, 79, 84, 91SELECT OPTION window ............................. 21, 40Select PRO scale option ...................................... 89SELECT PRO SCALE window ........................ 89, 90SELECT REP RATE window ............................... 29SELECT TIME FORMAT window .................... 47, 48SELECT TREATMENT window ........................... 42

SELECT TRMT MODE window ........................... 27SELECT UTILITIES window............................... 56SELECT UTILITY window ............................ 22, 23

SET DATE option .......................................... 47SET TIME option........................................... 48

selectingaccessories................................................... 30communications mode...................................... 24couch motion ................................................ 87energy........................................................ 28motor axis .............................................. 77, 85motor axis to move ......................................... 84options in service mode .................................... 18PRO scale ................................................... 89repetition rate................................................ 29SET UP options ............................................. 25treatment type ............................................... 26

self-test ........................................................ 32service keyboard .................................... 11, 23, 24service mode .................................................. 19

Alg Meter Calibration option .............................. 72Analog option .......................................... 70, 71Analog Scaling option ............................ 72, 73, 90beaming on .................................................. 31CALIB option ............................................... 32calibrating PROs ............................................ 91configuration data

saving ...................................................... 53controlling motions ......................................... 83description................................................... 11Digital option................................................ 74DISPLAY option ........................................... 70displaying

Analog PRO meter values................................ 71contents of common RAM ............................... 80control system timer status ............................... 81DBD control parameters.................................. 78digital I/O line status...................................... 74I/O port status ............................................. 81meter gain and offset factors ............................. 72motor axis control parameters............................ 77motor axis position limits ................................ 79positioning motor parameters ............................ 75PRO meter gain and offset factors....................... 73SPRO values .............................................. 74windows ................................................... 18

entering ...................................................... 11entering data................................................. 18exiting ....................................................... 19interlock status area......................................... 13Machine option ............................................. 70menu bar..................................................... 17message line................................................. 17moving

couch....................................................... 87gantry ...................................................... 85motor axis manually ...................................... 84

options ....................................................... 17overriding interlocks........................................ 66password window........................................... 12pendant redirection ......................................... 93


Index

PROs ......................................................... 17restoring original configuration ............................ 52saving configuration data ................................... 53screen ................................................... 12, 13selecting

options ..................................................... 18SET UP option .............................................. 25setting

communication timeout ................................... 95dose......................................................... 29mode........................................................ 26repetition rate .............................................. 29time......................................................... 30

SPRO option................................................. 74turning off/on

lasers ....................................................... 68lights........................................................ 68triggers ..................................................... 67

using hand pendant.......................................... 85Set all option .................................................. 25SET DATE option ............................................ 47Set PRF frequency option .................................... 82SET TIME option ............................................. 48SET UP option ................................................ 25

selecting options............................................. 25setting mode ................................................. 26

SET UP window ......................................... 25, 26setting

current date .................................................. 47current time .................................................. 48dose........................................................... 29energy ........................................................ 28modes ........................................................ 26PRO scale .................................................... 79repetition rate ................................................ 29time........................................................... 30

setup parameters .............................................. 15SPRO DISPLAY window .................................... 74SPRO option................................................... 74SPRO values, displaying ..................................... 74standby mode.................................................. 16starting a communications session........................... 98status

interlocks................................................ 13, 66status codes .................................................... 16STPS interlock ........................................... 85, 87Support........................................................... 7symmetric mode............................................... 84system status codes ........................................... 16

TTDLY (time delay)

interlock...................................................... 16mode ......................................................... 16

testingdose counters ................................................ 32dosimetry integration system............................... 32dosimetry system............................................ 32

timeconfiguring format .......................................... 47delay ......................................................... 16setting........................................................ 30setting current ............................................... 48

time factorconfiguring default.......................................... 37definition .................................................... 37values ........................................................ 37

TIME FACTOR option ...................................... 37TIME field .................................................... 37time format

configuring .................................................. 47TIME FORMAT option ...................................... 47Time option ................................................... 30timer

color coding ................................................. 81states ......................................................... 81

Timers option ................................................. 81transferring

files to Varian ............................................... 99Translator selection window ................................. 24treatment room lights ......................................... 68treatments

adding........................................................ 41modes

description ................................................. 26new......................................................... 27partial ...................................................... 27

modifying.................................................... 42removing .................................................... 43retrieving .................................................... 44selecting type................................................ 26

TRIGGER ENABLE window ............................... 67triggers

definition .................................................... 67status ......................................................... 67turning off/on................................................ 67

Triggers off/on option ........................................ 67troubleshooting

motion problems ............................................ 75turning off/on

lasers ......................................................... 68lights ......................................................... 68triggers....................................................... 67

turning on the beam .......................................... 31

UUpdate saved config option .................................. 52UTILITIES window ................................ 32, 33, 81UTILS option ................................................. 32


Index

VVarian scale.................................................... 89viewing

dynamic beam delivery logs................................ 60event logs .................................................... 60logs ........................................................... 60morning checkout logs...................................... 60

Visual ............................................................ 9visual cues used in guide ....................................... 9

WWEEE............................................................ 8windows

ADJUST DYNAMIC PARAMS........................... 78ADJUST MOTORS.................................... 77, 78ANALOG DISPLAY .................................. 70, 71Analog Scaling selection .............................. 72, 73CALIBRATION ............................. 32, 77, 91, 92

revised................................................. 72, 90Chat ..................................................... 98, 99COMMON RAM MEMORY .............................. 80COMMUNICATIONS ..................................... 95CONFIRM BEAM ON ..................................... 31CUSTOMER MINOR ACTIVE ........................... 45DEFAULT DOSE RATE................................... 36DIGITAL DISPLAY........................................ 74DISPLAY.................................................... 70displaying .................................................... 18DOSIMETRY ............................................... 32ENTER ARC THERAPY DATA.......................... 27ENTER DATE .............................................. 47ENTER FACTOR........................................... 37ENTER MAXIMUM DOSES.............................. 39ENTER MONITOR UNITS................................ 29ENTER ORIGINAL MONITOR UNITS ................. 29ENTER PASSWORDS..................................... 38ENTER PRF FREQUENCY ............................... 82ENTER TIME .......................................... 30, 48H/W TIMER OUTPUTS .............................. 81, 82I/O DATA ................................................... 81INTLK/TRIG/LT............................. 65, 66, 67, 68KEYBOARD OVERRIDE ................................. 66Lights ........................................................ 68MEMORY DISPLAY OFFSET ........................... 80METER CALIBRATION ............................. 72, 73modem connect selection ................................... 24MOTOR PARAMETERS ............................. 77, 79MOTORS.................................................... 84MOTORS LIMITS.......................................... 79physics mode password..................................... 21PRF FREQUENCY ......................................... 82PRO METER CALIBRATION ............................ 73READING I/O DATA...................................... 81revised CALIBRATION............................... 72, 90RV INTERFACE? .......................................... 49SAVE CONFIG DATA CHANGES ................. 53, 54SAVE TO DISK ?........................................... 54SELECT ANALOG METER .............................. 72

SELECT CONFIGURATION ............................. 22SELECT COUCH TARGET .............................. 87SELECT DATE FORMAT ................................ 46SELECT ENERGY......................................... 28SELECT GANTRY TARGET........................ 85, 86SELECT MAJOR MODE............................. 11, 20SELECT MODE ............................................ 26SELECT MOTOR AXIS............... 77, 78, 79, 84, 91SELECT OPTION..................................... 21, 40SELECT PRO SCALE ................................ 89, 90SELECT REP RATE ....................................... 29SELECT TIME FORMAT............................ 47, 48SELECT TREATMENT ................................... 42SELECT TRMT MODE ................................... 27SELECT UTILITIES....................................... 56SELECT UTILITY .................................... 22, 23service mode password ..................................... 12SET UP ................................................. 25, 26SPRO DISPLAY............................................ 74Translator selection ......................................... 24TRIGGER ENABLE ....................................... 67UTILITIES ............................................. 32, 33

Write data to disk option ..................................... 53

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600N / Novalis Dose Delivery System (Linear Accelerator)...Technical User Guide Rev. 1.0, Novalis...

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