GEM TN-93-401

GEM Test Beam Meeting at FNAL MWEST Conference Room

April 22, 1993

Abstract:

Agenda, attendees, and presentations of the GEM Test Beam Meeting at FNAL MWEST Conference Room April 22, 1993.

GEM Test Beam Meeting at FNAL MWEST Conference Room

April 22, 1993 9:00 am - 3:30 pm

AGENDA

The April 28 FNAL Test Beam Review

The GEM Multi-Lab Test Beam Program

Status of the MwEST Reconfiguration

The Calorimeter Transporter

The MWEST Test Cryostat

The Calorimeter transporter Controls

Data Acquisition Considerations

The End Cap CalJ;rimeter Test Modules

The Scintillating Calorimeter Beam Plans

Muon Subsystem Test Beam Plans

MWEST Beam Line Modifications

MWEST Momentum Tagging

P. Slattery

G. Yost

G. Ginther

D. Spisiak

N. Hall

K. McFarlane

J. Dunlea ~

P. Mockett

J. Sullivan -

C. Bromberg

R. Tokarek

E. Engels, Jr.

GEM Test Beam Meeting at FNAL MWEST Conference Area

April 22, 1993

LIST OF PARTICIPANTS

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GEM Test Beam Meeting at FNAL MWEST Conference Area

April 22, 1993

LIST OF PARTICIPANTS

Institution E-mail Address Internet Address [If Differentl ~<)'('-Yo~/ S'ScL '(os.1@ sscVX/ .

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Carl Bromberg Michigan State University Physics DepUJtment 25 l PA Bldg. East Lansing MI 48824 US A

Dr. James Dunlea University of Rochester c/o FERMILAB Box 500, MWest, MS 359 Batavia IL 60510 USA

Jim Ellermeier Fermi-Ad/MSD P.O. Bob 500 Batavia IL 60510 USA

Eugene Engels Univeristy of Pittsburgh Physics and Astronomy Department 100 Allen Hall Pittsburgh PA 15260 USA

Dr. George Ginther University of Rochester c/o FERMILAB MS 359, MWest, Box 500 Batavia IL 60510 US A

Neil Hall Superconducting Super Collider Physics Research MIS 2004 2550 Beckleymeade Avenue Dallas TX 75237 USA

Christopher B. Lirakis Fermilab P.O. Box 500 Batavia IL 60510 USA

W. Kenneth Mcfarlane Superconducting Super Collider Laboratory Physics Research, MS-2005 2550 Beckleymeade Avenue Dalla' TX 75237 USA

Gena Mitselmakher Superconducting Super Collider Laboratory Physics Research, MS 2005 2550 Beckleymeade Avenue Dallas TX 75237 USA

Dr. Paul M. Mockett University of Washington Physics Department FM-15 Seattle WA 98195 USA

Kate Morgan Superconducting Super Co!lider Laboratory PHR/MS-2000 2550 Beckleymeade Avenue Dallas TX 75237 USA

Dr. Paul Slattery University of Rochester Physics Department River Campus, B&L Bldg. Rochester NY 14627-0011 USA

Richard Smith Superconducting Super Collider Laboratory Physics Research, MS 2005 2550 Beckleymeade Avenue Dallas TX 75237 USA

Dan Spisiak U nivery of Rochester Dept of Physics & Astronomy Syndey W. Barnes Cyclotron Lab Rochester NY 14627

Francois Stocker Superconducting Super Collider Laboratory Physics Research, MS 2005 2550 Beckleymeade Avenue Dallas TX 75237 USA

Peggy Stone 4411 Roslyn Road Downers Grove IL 60515

Dr. James D. Sullivan Massachusetts Institute of Technology Plasma Fusion Center, Bldg. NW16-166 185 Albany St. Cambridge MA 02139 USA

Roger L. Tokarek Fermilab P. 0. Box 500 Batavia IL 60510 USA

George P. Yost Superconducting Super Collider Laboratory Physics Research, MS 2005 2550 Beckleymeade Avenue Dallas TX 75237 USA

Ewald Zimmer-Nixdorf Superconducting Super Col!ider Laboratory Physics Research, MS-2004 2550 Beckleymeade Av. Dallas TX 75237 USA

Presentation by:

P. Slattery

Central Tracker Studies Interpolating Pad Chambers

Follow-on studies to those to be carried out at BNL.

Bei1TfiifY Goal: Study rate capability of full-size barrel and endcap IPC's using final design electronics. Full scale system test of gas system, cooling system, mechanical support, ...

SWfidary Goal: Continue IPC resolution and efficiency studies begun at BNL in 1993 (& 1994?), incorporating ne\v ideas, in1proved electronics, ...

T~Goal; Investigate IPC performanc;e in 0.8 T magnetic field (in analogy with proposed CSC testing).

Reguirements;

• "Pinged .,, -beam- 109/s for ""'-lms-ovet:-.JO-cml

• Radioactive Source - SSFe or 106Ru ·

• Remotely Controlled (Surveyed) Transporter

• Non-flammable gas - C02::CF4 at 1 atm.

• DAQ - Could be standalone; may be integrated

• Estimated Beam Time:

- Setup: 100 h - Shared

- Low Intensity: 150 h - Shareda

- High Intensity: 150 h - Dedicated

Muon Tracker Studies Cathode Strip Chambers

Complementary studies to tests conducted at the TTR, and to bench tests using sources and UV-lasers.

Phase I; Test several small (30x30 cm2) CSC prototypes in a 0.8 T magnetic field.

• Simulate muons by n- at ~200 GeV/c [?]

- Study Lorentz angle effects [Config?]

- Investigate two-track resolution

• Enhance muon content of beam and use downstream teroid-syst~11_1 for µ tagging

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. - Study muon radiation at high energies [How?]

( • Simulate GEM calorimetry by passiv.e.absorber

directly upstrea~. _ _gf ~.!1~_..~alysis magnet

~- - Study hadron punch thro~2h (50-800 GeV/c) ( '-l:)Y-f,--

Ph ase II: Test full-size chambers (1.sxa.o m2).

Phase Ill; Use beam to verify the precision of a full­~~ scale alignable sector fixture. (Employ drift-tubes to Lor;;:;..>- obtain-th~equisite-tr-acki n g-p recisi on?) .;i~ R .

egu1rements: ~~4.:::'

• Charged Particle Spectrometer (inel. Muons)

• Non-flammable gas at 1 atm.

• Integrated DAQ System

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Presentation by:

D. Spisiak

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Presentation by:

N. Hall

GEM TEST BEAM CRYOSTAT STATUS

FNAL MEETING 4/22/93

Neil Hall - SSCL (214) 708-6180

Nell Hall, SSCL- (214)708-6160 Ap1il 21, 1993

GEM TEST BEAM CRYOSTAT AGENDA

• REVIEW SCHEDULE

• GENERAL REQUIREMENTS

• VESSEL DESIGN STATUS

• BATH BOX DESIGN STATUS

• NEAR TERM TASKS

Nel Hal, SSCL • (214)708-6180 Apr• 21, 1993

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GEM TEST BEAM CRYOSTAT GENERAL REQUIREMENTS

• BEAM ANGLE OF-2/+6 REQUIRES CRYOSTAT ROLL OF +2/-6

• INNER AND OUTER END CAP HADRON "C" NOT REQUIRED FOR TEST

• MODULES TO BE FIXED WITH RESPECT TO OUTER VESSEL AT:

• CENTER OF BARREL CALORIMETER

• FORWARD END OF END CAP CALORIMETER

• CRYOSTAT LOADS

WEIGHT OF MODUL~S = 106,000 LBS

WEIGHT OF LIQUID IN BATH BOX= 50,000 LBS

• WEIGHT OF CART, BATH BOX AND SUPPORT STRUCTURE= 10,300 LBS

• WEIGHT OF VESSELS = 14,000 LBS

• WEIGHT OF CRYOGENIC PIPING AND ELECTRICAL CABLES = 8,000 LBS

Neil Hal. SSCL- (214)708·6180 Apr• 21, 1993

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GEM TEST BEAM CRYOSTAT VESSEL DESIGN STATUS

• MAJORITY OF REQUIREMENTS HAVE BEEN DEFINED

CRYOGENIC PENETRATIONS REQUIREMENTS YET TO BE ADDRESSED

SIGNAL AND HIGH VOLTAGE FEED THAU REQUIREMENTS YET TO BE ADDRESSED

• FIRST CUT AT VESSEL DESIGN COMPLETE

VESSEL GOT LARGER/LONGER TO ACCOMMODATE MODULE SUPPORT STRUCTURE

'>/ INNER VESSEL !D = 93.75", OD= 95.25", WALL= .75", LENGTH= 25.9'

v OUTER VESSEL ID= 101.5", OD= 102.5", WALL= .50", LENGTH= 26.5'

'>/ VESSEL LENGTH PRODUCING INTERFERENCES WITH FACILITY

• VESSEL AND CONTENTS REARRANGED TO PREVENT INTERFERENCE WITH OBSTRUCTION ON REFERENCE "F" WALL

• INNER VESSEL SEALING METHOD BASELINED AS WELDED JOINT

'>/ CONTAMINATION ISSUES UNDER INVESTIGATION

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Nell Hall, SSCL- (214)708 6180 AprA 21, 1993

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GEM TEST BEAM CRYOSTAT BATH BOX DESIGN STATUS

• DEVELOPED UNDERSTANDING OF GEM CALORIMETER STRUCTURE

• REQUIREMENTS DEFINITION PARTIALLY COMPLETE

DUMMY MODULES/EXCLUDERS MAY BE NECESSARY TO REDUCE AMOUNT OF LKr

• COOLING LINES TO PROVIDE COOLING TO BARREL EM/END CAP EM. NO COOLING LINES REQUIRED FOR HADRON MODULES

INTERNAL STRUCTURE OF GEM CALORIMETER TO BE MOCKED-UP AS CLOSE AS POSSIBLE

Nel Hal, SSCL • (214)700-6180 Apnl 21, 1993

GEM TEST BEAM CRYOSTAT BATH BOX DESIGN STATUS (CONT.)

• BATH BOX DESIGN HIGHLY·DEPENDENT ON METHOD USED FOR MODULE INSTALLATION

AVAILABLE AREA IN MWEST MAY CAUSE MODULE ASSEMBLY/INSTALLATION HARDSHIPS.

• INSERTION BRIDGE/CART ASSEMBLY TO BE BUil T

" ELEVATE BATH BOX TO LEVEL OF CRYOSTAT

" PROVIDE 3 FOOT WIDE WALKWAY AROUND BATH BOX

" WILL RIDE ON NORTH/SOUTH RAIL SYSTEM (TO BE INSTALLED)

" CART TO TRANSFER MODULES FROM INSERTION BRIDE TO SUPPORT STRUCTURE ON INSIDE OF VESSEL

" INSERTION BRIDGE TO ROLL BACK FOR VESSEL HEAD INSTALLATIONS

• TWO METHODS UNDER CONSIDERATION FOR MODULE INSTALLATION

INSTALL MODULES VERTICALLY USING CRANE

• INSTALL MODULES HORIZONTALLY USING GEM CALORIMETER! MANIPULATOR TOOL

Nel Hal, SSCL • (214!708·6180 AfJ{ 21, 1993

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GEM TEST BEAM CRYOSTAT NEAR TERM TASKS

• COMPLETE DEFINITION OF INNER AND OUTER VESSEL REQUIREMENTS

DEFINE ALL PENETRATIONS, SIZES, LOCATIONS

• COMPLETE DEFINITION OF BATH BOX REQUIREMENTS

• DEVELOP ACCURATE LAYOUT OF MWEST FACILITY

• PREPARE REQUIREMENTS DOCUMENT

• BEGIN BATH BOX DESIGN

Neil HaH, SSCL • (214)708-6180 AprM 21, 1993

Presentation by:

J. Dunlea

' April 22, 1993

GEM Test Beam DA Review This is called a test beam, but is as big or bigger than most experiments of the past.

Test Beam Design Configuration

• Upstream Tracking - Old tracking 500 words/event

• Additional beam line tracking - 100 words/event

• Calorimeter test -Two 9° slice - EM and HC 3200 channels x 5 samples (all channels read out/event) = 15000 words/event

Initial calorimeter readout may be one sample and FASTBUS readout.

• SCIGEM- 100 words out/event

• Muon Test - full detector is 1 million channels - test may be 1/64 piece or 16,000 channels. How many channels read out/event? 10%? 1600 channels?

• Control and triggers 100 words/event

• ""'17 ,000 words/event read out.

• 100 events/sec trigger rate= 1.7 million words/sec= 6.8 Mbytes/sec out.

• 2.3 Mbytes averaged over spill.

April 22, 1993

PREP needs - Fermilab equipment pool

• Includes hardware support for computers and drives.

• Reduces Costs

Can take out some equipment

Do not have to buy spares

• Can get items for tests (temporary) with purchasing

• Cost?

2 - 5% of cost of items

.How does exisiting E706 equipment count?

How does one take into account depreciation?

April 22, 1993

DA Software Support

We have problems similar to many new experiments and some differences.

Currently relationships between the SSC and FNAL are being defined.

Can we build a mutually advantageous relationship?

• We might make things work with just SSC assistance, but there are problems with local support and manpower.

• DART at FNAL needs manpower for development.

• SSC people want to build experience with working DAs as well as support SSC experiment's

• We need support

What does.it mean to bea part of DART.

• Need to donate 1 FfE equivalent to DART, Could be two people 50% on DART etc.

• One person attends DART meeting and takes part in the design.

• They assign a computer division personnel to the "experiment" to support it.

• April 22, 1993

Current Problems

CAMC VME interface - Jorway 73A or CEB 8210

Connections for VME crates 100 m Bit 3 or SCRAMNET.

Also perhaps connection of 300 meters to CAMAC.

Fastbus Smart Crate Controller

•

Presentation by:

J. Sullivan

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