MTA Installation Progress Report June 8, 2007

http://www-bd.fnal.gov/external_beams/Projects/MTA/MTA_index.html

MTA Installation Web Page

F.G. GarciaAD/Proton Source Department

06/08/07 F.G. Garcia 2

MTA Quizz

What does MuCool stand for? Muon Cooling Experiment

What does MTA stand for? MuCool Test Area

Is this part of the Proton Source? No! This line belongs to External Beams Division

So… Why do I care?? 1. Because they will extract beam from Linac

More precisely, around the Chopper region2. Because this line will provide us capability to

measure Linac emittance3. Because I am the Project Manager and…

today is my birthday…

06/08/07 F.G. Garcia 3

MTA Beam line

The beam line will be used to test liquid hydrogen absorbers for beam cooling Desirable beam requirements

H- at 400 MeV 50 mA peak current & 50 sec pulse length @

15 Hz (~1.6E13ppp) Big problem with shielding!!!

Other experiments can use a more modest integrated intensity and rep rate Tests of pressurized RF cavities Irradiation of detector components etc…

06/08/07 F.G. Garcia 4

MTA Beam line Layout

pulsed magnets

Cooling ring dipole

Quadrupoles

Shielding wall(12ft long)

MTA Exp. Hall

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MTA Beam Line – Diagnostic Optical Functions

Beta Functions

0 25 50

140

0

Experiment hall

40

20

0 25 50

~10m magnet free straight sectionfor transverse emittancemeasurement

Beam size changes byan order the magnitude

06/08/07 F.G. Garcia 6

MTA Beam line Installation

Goal Install the MTA beam line components, or as much as

possible, during this shutdown. Start from scratch…or almost from scratch

Build stands Refurbish magnets Utilities installation

Expand electrical distribution for MTA Install cable trays Install LCW system for cooling requirements

Install instrumentation, magnets, beam valves, beam stops, vacuum, controls, etc…

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Organization Chart

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MTA - Progress Report

Real Estate established at the South end of the Linac Gallery (thanks Linac group!) Total of 8 relay racks

3 for power supplies 5 for electronics and controls

Magnets Current at IB2 for refurbishment/measurements

6 (5+1) CRD 12(8+4) 200 MeV (TQTB) 5 (4+1) SQA

There are 2 new “C”-magnets been built These magnets will be responsible for beam extraction

from Linac to MuCool enclosure Estimate time for delivery: middle August

6 CDA (5 install+1 spare)

CDR in storage(02/22)

Coil refurbished(04/24)

Alignment nests(05/03)

Current Status

- Coil refurbishement complete

- Power flag relocation ongoing

- Water connections ongoing

10 TQTBs (install 8 + 2 spares)

(also known as 200MeV Quads, Green Quads, 400MeV Quads…)

Reference the magnetscomplete

Hydraulic test passed withflying colors…

Current Status- Remnant field measurement

complete- Upgrade the electrical box

mostly complete- Beam pipes at desired length

installed- Reference is complete

Future Plans: - Ship to MAB to dry fit the

stands and final storage

5 SQA Magnets (install 4 + 1 spares)

SQA staged at X gallerywaiting to be shipped to IB2

(05/11)

Current Status:- 4 magnets staged at IB2- Need to retrieve one

more SQA from Booster tunnel

- Working on stand design

ToDoList1. Flush out the magnet2. Hipot3. Replace the water

tubings with kynar4. Weld alignment

fiducials

06/08/07 F.G. Garcia 9

MTA - Progress Report Alignment

Network setup Both enclosures have the network done

Tiroids and monuments have been installed on the walls and floor respectively

At MTA Exp. Hall enclosure the local coordinate system has been established Awaiting for an opportunity to complete this job in Linac

The completion of this task prior the shutdown would gain valuable time during the installation

Power Supplies AD/EE group will support the power supplies

Quadrupoles (B. Brooker) 200 MeV Bartleson supplies SQAs Lambda

Cooling Ring Dipoles (B. Brooker) String of 4 PEI (Linac Lower Level) Single Power Ten (from 400MeV upgrade)

“C” magnet (M. Kuffer) New power supply being built

Trims (B. Brooker) Inherit from Booster after the shutdown

06/08/07 F.G. Garcia 10

MTA - Progress Report

Instrumentations/Diagnostics

BPM System Use 10 Booster style pickups Readout electronics will be similar to the pbar target bpms.

Toroid System There will be 3 toroids installed

The beam line only needs 2 toroids. One right at the extraction from Linac and the other at the very end. The 3rd toroid will be installed adjacent to the most DW one for instrumentation/interlock group e-berm development platform

Booster has two (2) 3.25in Pearson toroids. The other one will be supplied by instrumentation group.

MWs Requirements: 7 MWs with different wire spacing Booster has enough MW cans that will be re-used MW electronics will be similar to KTeV system.

BLMs There will be 12 BLMs along the line. Electronics will be provided by M. Olson.

Controls (M. Kucera)

M. Kucera and R. Godwin are helping integrate MTA to the Linac Control System.

06/08/07 F.G. Garcia 11

MTA - Progress Report

Vacuum SystemVacuum Components

- 3 Ion pumps (600l/s)- 2 roughing valves- 2 Pirani gauge- 2 ion gauge- 2 beam valves

Courtesy: T. Anderson

06/08/07 F.G. Garcia 12

MTA Installation - Current Issues

Shielding under the hatchway area The existing shielding underneath the

hatch is not sufficient to run beam to the MTA enclosure

26’-0”

13’-6”

concrete

soil

concrete

air

soil

21’-0”

10’-6”

It has been installed primary to protect personnel inside the

MTA enclosure from Linac beam

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MTA Installation – Current Issues (cont.)

Hey! Wait…there is more… Problem:805 MHz waveguide, 201MHz Coax and cable tray runinside the hatch!!

06/08/07 F.G. Garcia 14

MTA Installation – Current Issues (cont.)

Head of External Beam line decided to remove the shielding blocks underneath the hatch and re-stack appropriately Work group meets weekly with safety to resolve this

problem. More manpower has been added to the group in order to re-

design the shielding configuration It must accommodate a beam stop upstream the shielding wall It looks like one may be able to leave the WG, Coax and cable

tray as is and work around it (?) Still need to be resolved and decided

MTA wants to run during the shutdown… You may be wondering…if the shielding will be removed,

what about NTF? Good question:

NTF will be able to run with the hatch shielding removed and the subsequent RF stations locked off.

However, the hatch must be installed and locked, and MuCOOL would need to be interlocked to Linac.

06/08/07 F.G. Garcia 15

MTA Installation – Current Issues (cont.)

If the shielding blocks are removed… The beam line installation will take

advantage of this. Major components will be lower to the

enclosure thru the hatch area The original plan was to use the infrastructure

available at north end of Linac Up to 25% reduction in installation time one

could expect If the network and the stake survey in Linac

enclosure are accomplished prior the shutdown, another 3 days can easily be saved during the shutdown…

06/08/07 F.G. Garcia 16

Bottom line

The project is facing some challenges We have a plan to manage these problems in

order to minimize the risk of project delay Working on a strategy to address the problem Patience and perseverance are the key at this point

I have no doubt we will resolve the issues and complete the installation within the shutdown timeframe!

MTA Installation – Current Issues (cont.)

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FIM

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Extract Beam to MTA line

Linac Max Nominal

Beam current(mA)

50 35

Macro pulse width(sec)

50 25

Repetition Rate(Hz)

15 7.5

Beam intensity(protons/pulse)

1.6E16 5.5E12

The simplest way of doing it is to use a Linac beam study pulse.

At a glance: - Currently Linac uses 3

dedicated chop lengths as inputs to the pulse shifter (HEP,NTF & studies).

- T-clock event triggers request for beam, in this case, studies pulse ($OA).

- The frequency of the beam can be adjusted by the rep rate generator.