18-Nov-98

W.A. Zajc

IntroductionIntroduction

PHENIX TAC Follow-up Meeting

18-Nov-98

W.A. Zajc

OutlineOutline

Results of Aug-98 TAC

PHENIX response to same

Purpose of this mini-TAC

PHENIX Status

18-Nov-98

W.A. Zajc

Aug-98 TACAug-98 TAC Focussed specifically on

the overall plan to complete PHENIX the installation and commissioning

schedules related cost issues

Findings Substantial progress since the May 1997

review (all sub-systems) Mechanical construction of baseline

detector components is proceeding well. Rate of progress on the Front End

Electronics systems continues to improve, although, as noted in the June mini-review, “progress must continue to accelerate in order for completion in time for the Engineering Run and Day-One physics.”

Schedules remain tight The collaboration’s management has

done a good job of maintaining an integrated plan for installation and commissioning which provides some flexibility for schedule changes and for optimizing the physics capability at “Day-One”.

18-Nov-98

W.A. Zajc

Aug-98 TAC Aug-98 TAC (Cont’d)(Cont’d)

Findings (Continued) Despite good progress, the

aggressive scheduling goals given a year ago have, in most cases, not been met.

Major concern is with the continuing increase in the cost of PHENIX

Required deferral of $3.6M of readout and DAQ

TAC estimated probable shortfall in excess of $5M

Recommendations: PHENIX and RHIC project

management, BNL management, and DOE should develop a plan that

Deals with the probable shortfall. Addresses probable shortfalls in AEE

funds for Muon Arm construction. In PHENIX project management is

strongly encouraged to look at the possibility of permanently descoping subsystems of the detector.

18-Nov-98

W.A. Zajc

Task ForcesTask Forces

Convened to address a specific problem

Members: A representative selection of

interested parties Avoidance of affected line managers

Process: Intensive study of status, schedule,

finances Report to management on same plus

explicit recommendations for action Duration of ~ 1 month Conclusions considered (in turn) by

Project Management Executive Council Detector Council Collaboration (Town Meeting) Project Management

End Result:A complete analysis of available options

by all elements of the collaboration

18-Nov-98

W.A. Zajc

Baseline Task Baseline Task ForceForce

Charge-- produce a plan which: Allows us to finish the Year-1 detector

on the funds available in FY99; Defines a scope that can be completed

within 3 years of the end of the Baseline construction project.

Preserves the broad, unique physics program attainable in Year-1 and long-term.

Chair: Hans-Ake Gustafsson Members:

Y. Akiba, B. Cole, T. Hemmick, J. Mitchell and R. Seto.

Outcome: A plan which

Reduces mortgage substantially by combination of deferrals and descoping

Preserves most of initial physics capability

(Details in H-A. Gustafsson’s presentation)

A recommendation that similar task force examine Muon systems.

18-Nov-98

W.A. Zajc

Muon Task Muon Task ForceForce

Charge:1. Review present scope and

technical/cost/schedule status of the muon system.

2. Make recommendations on a Plan-to-Complete for the system that

a. Can be completed within the remaining AEE and RIKEN funds;

b. Can provide muon measurements at some point in the first year of RHIC operations and spin physics data during the second year of RHIC operations.

c. Describes any deferrals and/or descoping necessary to obtain Items 2a and 2b.

d. Allows those deferred items to be built and installed within 3 years from the end of construction.

Chair: Soren Sorensen Members:

T. Awes, C.Y. Chi, A. Drees, M. Leitch, E. O'Brien, S. Pate, N. Saito

Outcome: A complete review of PHENIX muons

Physics Status Schedule Finances

Detailed discussion of two schemes for mortgage reduction

18-Nov-98

W.A. Zajc

This Follow-UpThis Follow-Up

Purpose: To evaluate the overall PHENIX

plan to complete the construction and commissioning of the detector

Assess our plan to deal with the funding deficits projected for PHENIX in a way that does not incur an unrealistically large mortgage against future funding

Specifically: Is the plan technically feasible,

and consistent with the RHIC End-Game and startup schedules? Are the estimated costs-to-complete realistic?

What are the compromises in physics capability?

Is the plan to recover deferred costs acceptable?

18-Nov-98

W.A. Zajc

TremendousTremendous progress since last year.

Infrastructure:

Experiment Experiment StatusStatus

~TAC97

~TAC98(-5 months)

18-Nov-98

W.A. Zajc

TremendousTremendous progress continues in the hall:

All EmCal, RHIC mounted on West Arm

Surveying indicates positioned to < 1 mm of design location

Choreography underway now

Experiment Experiment StatusStatus

18-Nov-98

W.A. Zajc

Experiment Experiment StatusStatus

TremendousTremendous progress since last TAC:

muID Installation complete 15-Sep-98

18-Nov-98

W.A. Zajc

MagnetMagnet

Central Arm: Mapping in progress Primary goal:

Evaluate performance of the field reconstruction software before the production mapping starts at the end of November.

Question: Green’s functions (MIT) vs. finite element (Efremov)

Great opportunity for (dedicated) student contributions

MMS: Tested at full field Began fixture assembly

MMN: Fixture installed

18-Nov-98

W.A. Zajc

Status (Cont’d)Status (Cont’d) MVD

QA First 14 Si Pads MCM output cables 24 Evaluation MCM’s (LockMart)

Clean room prepared at BNL Working PC MCM

DC Started production-line testing and insertion of

wire modules into the first Drift Chamber. Orders placed for some production-level items Received first production modules for the DC

FEM. TOF

9 of 10 panels complete (at BNL) BB

Detector at BNL Prototype board done

L1 Testing complete on GL1-1, Clock and Accept,

6Rx boards GL1-2 Board, fabricated, assembled and under

test GL1-3 board ready for fab

18-Nov-98

W.A. Zajc

PCPC

Have a PC1 and a PC3 prototype

Position dependence of gains measured, certified as acceptable

Encouraging efficiency studies with full FEM readout

PC1 efficiency studies with cosmics:

18-Nov-98

W.A. Zajc

TECTEC Details:

11 chambers mechanically complete

Work started on #19 First 64 channel FEM board

Stuffed Test pulses read out in VME

Good progress on grounding studies

Summary: Sector 3: frame assembly

started Sector 2: winding Sector 1: Cosmics!

18-Nov-98

W.A. Zajc

EmCalEmCal PbSc:

All four sectors mounted on West Arm:

All six have completed internal cabling

Laser testing in progress PbGl:

Completed enclosures on Sector 1 Prepared test system for LED/PMT’s

18-Nov-98

W.A. Zajc

MuonsMuons muTR

Encouraging bids on Station 3 honeycomb, FR-4

Continued tests with wire-laying boom on mock panels

First final south frames from BARC arrived, found satisfactory

All drawings for the south arm detectors are complete and procurement ready.

Simplifications in FEE Grounding and LV distribution Timing distribution

Muon ID Gas system specs written completed basic testing of

all installed small MuID panels 21 out of 40 large panels in situ

with very good results.

18-Nov-98

W.A. Zajc

DAQDAQ

DCM’s All FE1, FE2 cards stuffed, tested Two full DCM’s fabbed, tested

before full production

EvB Version 1 of all component

classes (SEB, EvB controller, ATP) written

2 x 2 EvB working in hardware

Collect the Data!

Collect the Data!

Collect the Data!

18-Nov-98

W.A. Zajc

OfflineOffline

“MDC 1 happened”: Transferred 500 GB of simulated data into the new

HPSS storage hierarchy. Demonstrated sustained transfer rates of nearly 9

MB/sec. Successfully used RCF-developed reconstruction

control software to stage simulated data to nodes of the reconstruction farm and run PHENIX reconstruction software. The aggregate CPU power of the nodes used by PHENIX during MDC1 was equivalent to about 25,000 VAX-11/780's.

Developed several significant improvements in the RCF control software (job auto-submission, web-based monitoring tools) and fed these back to the RCF staff.

Upon completion, each reconstruction job updated an Objectivity production control database (using the RCF developed port of Objectivity to Linux).

At the start of each reconstruction job, geometry parameters for the drift chamber were read from an Objectivity-based calibration database (again, using the RCF port of Objectivity to Linux).

GEANT simulations of muon arm data were successfully converted into the PHENIX raw data format (this has since been done for the central arms too). The reconstruction of muon arm events used this realistic "raw" data as its starting point.

Used ORNL-developed tape access optimizing batch system to retrieve reconstructed data files from HPSS in an efficient way. This improved our effective bandwidth for reading DSTs by a factor of five.

18-Nov-98

W.A. Zajc

ComputingComputing

MDC: Proof-of-principle in

reconstructing from PRDF Some physics studies

underway from MDC DST’s Extensive “experience” with

Network problems Disk back-ups Disk space management

Very useful in development of analyses within Physics Working Groups

18-Nov-98

W.A. Zajc

PHENIX PhysicsPHENIX Physics

PHENIX provides unique insights into heavy ion collisions at RHICRoughly equal sensitivity to phenomena at all

time scales Initial conditions (hard scattering) Medium effects (vector mesons) Thermalization (photons) Final state (hadrons)

The same apparatus allows world-class measurements on the spin structure of the proton

We have endeavored to preserve as much of these capabilities as possible Initially (available in Day-1) Potentially (upon recovery of deferrals)

Descoping has however, affected our ability to Control systematics Preserve aperture and rate Trigger(!) A small shortfall has resulted in a large loss

Details in G.R. Young’s talk

18-Nov-98

W.A. Zajc

Baseline Baseline PriorityPriority

Essential for allocation of resources

Stated on 15-Sep-98 by PHENIX Management: The recently accepted

recommendations of the Gustafsson task force leave unchanged the PHENIX priority for the first year of running. Specifically, the highest priority for Year-1 remains the completion of the East Arm and its use for the Au-Au program outlined by the Day-1 Task Force last year.”

Note: Application of this (necessary) prioritization will put early pair physics at substantial risk

18-Nov-98

W.A. Zajc

Site ActivitySite Activity A tremendous

convergence of workat various sites around BNL outside the lab

18-Nov-98

W.A. Zajc

Progress Progress SummarySummary

10-Jan-98

24-Sep-98

20-Oct-98

09-Nov-98

Summary: Accelerating

progress that is indicative of

overall experimental

effort

18-Nov-98

W.A. Zajc

Collaboration Collaboration ViewView

The Task Forces (and subsequent discussion) have played an essential role in building consensus

The proposed descopings Baseline Task Force

Loss of TEC in West Arm Loss of PC2 in East Arm Loss of EmCal Trigger

Muon Task Force Loss of anode readout

have been viewed as “acceptable” risks. There is recognition that the SE&I costs are

necessary to build an infrastructure that is Safe Durable Flexible

But There is serious concern in the

collaboration that these costs jeopardize (at least) the successful implementation of the Baseline Task Force’s recommended plan.

18-Nov-98

W.A. Zajc

SummarySummary

Collaboration commitment?

Institutional resources used to provide 7% solutions

Yesterday:

35+ vehicles at PHENIX Experimental Hall

5+ tables in cafeteria(in spite of BSA-mandated

descopings/deferrals in service)

3+ examples of second-generation PHENIX-ians.

18-Nov-98

W.A. Zajc

SummarySummary

Purpose: To evaluate the overall

PHENIX plan to complete the construction and commissioning of the detector

We have a plan that projects our current status into an essential physics program for Year-1 (and beyond) at RHIC.

Assess our plan to deal with the funding deficits projected for PHENIX in a way that does not incur an unrealistically large mortgage against future funding

$1.4M on baseline $1.6M on muons

18-Nov-98

W.A. Zajc

Summary Summary (cont’d)(cont’d)

Specifically: Is the plan technically feasible, and

consistent with the RHIC End-Game and startup schedules?

Yes Are the estimated costs-to-complete

realistic? (Yes)

What are the compromises in physics capability?

Central arm pair physics at risk in Year-1 (West Arm robustness, schedule)

J/ physics at risk in Year-2 (!) (MMS schedule)

Central arm tracking efficiency (PC2 in East Arm)

Triggers for Spin High luminosity heavy ion operations

Is the plan to recover deferred costs acceptable?

(Yes) Help here is most appreciated!

18-Nov-98

W.A. Zajc

Forms of HelpForms of Help

Baseline:PC2 restoration in East Arm

~ $320K Restores East Arm to complete CDR

version (I.e., the best implementation of PHENIX central arms detectors we can build).

AEE Muons

$1000K profile relief Insures J/ physics in Year-2

High pT triggers and rare processes $1300K in Gelbke plan Leverages PHENIX bandwidth

capabilities Restores (otherwise descoped) EmCal

trigger

BNL Assistance in performing (and

supporting) essential SE&I activities in PHENIX Experimental Hall