EMU CSC Beam Test

By Yu. Bonushkin
e-mail bonushki@physics.ucla.edu

HOT LINKS

Data Analysis Page (maintained by Bryan Smith)

EMU FAST/Beamtest DAQ Page

Beam Test '99 Picture Gallery

Beam Test '99 Log

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Introduction

In the end of '98 and in FY'99 we planned 3 chamber testing events to happen:

• December 5-12 '98, - guard strip / HV segmentation studies in the OPAL pit at CERN. It's over, and Bryan Smith keeps the analysis and results page updated.
• February 8 - May 1 '99, - aging tests at GIF (Gamma Irradiation Facility, X5 beamline) with specially designed chambers. This will be followed by electronic microscope studies of deposits on wires and cathodes, in Gatchina. Please, check out Bryan Smith's analysis page. As a result of this test we changed the chamber design to improve its operational stabiliy after irradiation: guard strips at the edges of wireplanes and segments were replaced by a single 200 micron guard wire.
• August 4 - September 15 '99, - tests of the P2" pilot production chamber (we have to do something about those names) with the pilot version of frontend and trigger electronics, at GIF. The chamber will be integrated with electronics, cooling system, alignment sensors, temperature, pressure and DC voltage sensors. These integration tests are supposed to demonstrate our readiness to start chamber and frontend electronics mass production. The rest of this page is devoted to this subject.

List of Deliverables

• P2'' chamber: G.Apollinari, O.Prokofiev (FNAL) - June 25 ;

• 5 96-channel Cathode FEB's VME DAQ motherboard, PCI card for DAQMB optical readout, JTAG for CFEB's: T.Y.Ling, S.Durkin (OSU), comparators - J.Hauser (UCLA), SCA - R.Breedon (UCD) - June 1 ;

• 4 96-channel new anode FEB's: analog - T. Ferguson (CMU); digital - J. Hauser (UCLA) - June 1 ;

• VME Trigger Mother Board (TMB) and Clock and Control Board (CCB): P.Padley, M.Matveev (Rice) CCB - June 1, TMB - June 15 ;

• VME ALCT and CLCT cards: Jay Hauser (UCLA) layout - June 1, board - June 30 ;

• A special VME crate to host all VME modules for the chamber readout: OSU - June 1 ;

• LINUX PC-based DAQ and monitoring system for all components: A.Bujak, D.Chrisman, B.Gorn, L.Gorn, B.Smith - June 1 ;

• On-line monitoring: L.Gorn (UF) - June 1 ;

• Off-line framework: L.Gorn (UF), B.Smith (CMU) - June 1 ;

• HV mainframe and HV distributor/monitor box: A.Korytov (UF) - July 30 ;

• 300V power supply and DC_DC converter to +5V, distributor on the chamber: R.Loveless (UW) - June 1 ;

• 12 32-channel LeCroy 3377 TDC's for anode time measurements: T.Ferguson (CMU) - June 1 ;

• Gas mixture components in appropiate amounts: FNAL - O.Prokofiev - June 1 ; CERN - B. Gorn - August 4 ;

• Water cooling system R.Loveless (UW) pad to be assembled with CFEB's on P2 - June 1 ; integrated with P2'' frame - June 25

• Comment on cables. All cables are provided by the people responsible for building certain systems:
  • anode FEB's to LVDS-to-NIM (15m), to TDC's(1-3m) - CMU;
  • anode FEB's to ALCT (8m) - UCLA;
  • cathode FEB's to DAQMB (8m) - OSU;
  • cathode FEB's to CLCT (8m) - UCLA;
  • ALCT, CLCT to DAQMB (VME backplane) - OSU;
  • ALCT, CLCT to TMB (VME backplane) - Rice;
  • TMB, CCB to DAQMB (VME backplane) - Rice;
  • low voltage: power supply to DC/DC (?m), DC/DC to P2'' (15m) - UW;
  • high voltage: CAEN mainframe to monitor box (?m), monitor box to P2'' (15m) - UF

Test Schdules

• The chamber integration with electronics and other components, tests at FNAL - June 1 - July 30;
  • DAQ system setup anode TDC readout - June 1 - June 6 (A.Bujak, D.Chrisman, O.Prokofiev, S.Medved')
  • 1 CFEB arrived (no comparators), mounted on P2', DAQMB and PCI readout card connected to DAQ, debugging PCI readout, frontend calibration, taking data on fronend performance, first pretty event display pictures - June 16 - June 18+ (J.Gilmore, J.Gu, O.Prokofiev, S.Medved', A.Bujak, D.Chrisman, L.Gorn)
  • VME arrives, debugging VME connection to CCB, continuing taking data - June 28+ (OSU, A.Bujak, S.Medved', M.Matveev)
  • P2'' assembly finished, leak tests - Aug.19, delivered to Lab.7 - Aug.21, HV training started - Aug.22
  • Remaining 4 CFEB's (complete with comparators) arrived, mounted on P2' - July 19 (J.Gu, S.Medved)
  • Low voltage system tested and cooling plate mounted on P2'' - July 23 (UW)
  • Transfer frontend electronics from P2' to P2'' - after the HV training, tentatively on July 26 (OSU, O.Prokofiev, S.Medved', S.Lusin, Yu.Bonushkin)
  • CCB and DAQMB put into the VME, full system debugging - July 27 - August 2 (OSU, S.Medved', A.Bujak, M.Matveev, Yu.Bonushkin)
  • Final adjustments to cooling system - July 28 (UW)
  • RPC: integration with RPC will take place at CERN in mid August.

• Shipping to CERN - August 3

• Preparations at CERN, moving the equipment to GIF, cable layout, setting up the gas system, low voltage power, HV power and cooling water - Aug.2 - Aug.9

• Chamber reception, inspection, mounting on the support and bringing it into the GIF, connections, hardware debugging, readout adjustments, unpacking the data and data quality control - Aug.9 - Aug.18.

• Fine tuning of the chamber and DAQ, taking data parasitically with ATLAS, calibration - Aug.18 - Aug.25.

• Our master-time at GIF, taking data to study the chamber performance in the high background environment. Shift work, online monitoring, data quality control, pilot data processing - Aug.26 - Sep.15.

• Chamber extraction from GIF, dismantling the equipment, data processing, reporting first results - Sep.15 - Sep.29.

• Data processing, compiling results and writing paper - Sep.29 through completion.

People Involved

Expertise of the following people is crucial for the success of the test, so I would like to suggest them to commit their time this summer. It is important that significant part of us stay at CERN for the whole duration of the test, trough September 15 plus a few days to extract the chamber and pack stuff (That's why I suggest to stay till Sep.17). Note that most of the shift work is scheduled for the last 3 weeks. August 9 is the earliest date the chamber can arrive to CERN.

Name	Institution	Responsibility	at FNAL	at CERN
Alon Attal	UCLA	comparators, LCT boards	Jul.5 - Jul.30	Aug.13 - Sep.17
Nikolai Bondar'	CMU	Anode FEB's	Jun.1 - Jul.11	Aug.15 - Sep.17
Yuri Bonushkin	UCLA	coordination	Jun.7-10, Jul.17-30	Aug.9 - Sep.17
Richard Breedon	UCD	SCA, offline, CMSIM	x	Aug.27 - Sep.17
Adam Bujak	Purdue	DAQ, off-line	Jun.1 - Jul.30	Aug.9 - Sep.17
David Chrisman	UCR	DAQ, off-line	Jun.1 - Jun.18	Aug.9 - Sep.17
Tom Ferguson	CMU	anode electronics, off-line	...	Aug.9 - Aug.15
Bill Gorn	UCR	DAQ, organization at CERN	x	Aug.9 - Sep.17
Lisa Gorn	UF	DAQ, on-line monitoring, off-line	Jun.7 - Jun.18	Aug.9 - Sep.17
Jay Hauser	UCLA	trigger elec's, off-line	Jul.7-15, 18-28	Aug.15-20, Sep.6-11
Steve Hershman	UCD	off-line, CMSIM	Jun.21 - Jul.12	...
Andrei Korytov	UF	coordination	?	Aug.11-21, Sep.5-12
Mike Matveev	Rice	trigger motherboard, CCB	Jun.28-Jul.1, Jul.28-30?	Aug.9 - Sep.17
Sergei Medved'	Purdue	chamber/electronics	Jun.1 - Jul.30	Aug.9 - Sep.17
Pat Murray	UCD	SCA, CFEB's	Jun.30 - Jul.2	Aug.9 - Sep.9
Jason Gilmore	OSU	Cathode FEB's, DAQMB, PCI readout cards	Jun.7 - Jul.30	Aug.9 - Sep.17
OSU person 2	OSU	Cathode FEB's, DAQMB, PCI readout cards	Jun.7 - Jul.30	Aug.9 - Sep.17
Paul Padley	Rice	TMB, CCB, off-line	?	Aug.9 - Sep.17
Oleg Prokofiev	FNAL	chamber expert	Jun.1 - Jul.30	Aug.9 - Aug.25
Vladislav Sedov	CMU	Anode FEB's	Jun.1 - Jul.20	...
Bryan Smith	CMU	on-line, off-line mainframe	x	Aug.9 - Sep.17
Nikolai Terentiev	CMU	anode electronics, off-line	Jun.1 - Jul.30	Aug.15 - Sep.17

Useful links

• New DAQ webpage.
• Baseline Design of EMU Front-End Electronics (from T.Y.Ling's page).
• Anode electronics. Anode Front-End Electronics Page at CMU, and specifically 1999 Prototypes of the amplifier/discriminator chip and FEB
• Cathode Electronics
  • OSU "Prototype Plans" page
  • Jason's page (very informative)
  • Summary of data bits through DAQMB
  • Communication between DAQMB and LCT cards from OSU-UCLA meeting (J.Gilmore)
  • UC Davis SCA page
• Trigger Electronics
  • Prototypes '99 on the UCLA-CMS trigger electronics page; including links to descriptions of trigger sections on anode and cathode FEB's.
  • I/O specifications of the trigger system modules are discribed in the famous memo "CMS EMU Trigger System Inter-Module Signals"
  • Anode and Cathode LCT '99 specifications
  • Trigger Mother Board (TMB) Muon Port Card (MPC)
  • Clock and Control Board (CCB)
• Chamber Alignment (design review and the straightness monitor paper on Dave Eartly's page)
• '99 Beam test data analysis page (maintained by Bryan Smith)
• '98 Beam Test Analyses.
  • Anode front-end performance analyses could be found on Bryan's P2 analysis page and Nikolai Terentiev's page.
  • Cathode front-end performance. Strip related analyses on Lisa's analysis page.
  • Trigger performance (preliminary) (Jay Hauser's talk on the Lyon CMS week, September '98).
• Beam test '98 page.
• Beam test '95-97 page, by Paolo Giacomelli.
• Detailed description of the GIF environment:
  • SPS Accelerator and GIFschedule this year.
  • X5 page at CERN accelerator group,
  • synoptic of X5 beam,
  • description of irradiation facility,
  • and the muon beam.

Experimental Setup, Data Paths and Trigger Signals

I have a recently updated drawing, showing the setup, module inter-connections, data links, trigger signals etc. As I learn more about the system and changes to the original setup, the picture is updated. Please, take a look and make your comments. One can notice P0 chamber shown on the drawing, serving as a precision traking device. Its 16 out of 32 6mm strips are read out by the 5th '99 cathode FEB.

Here's a drawing of GIF (click to download the pdf file). Lines are possible cable layouts, with colors matching those on the drawing above. There is about 40 meter cable length from the chamber to the control room where we can put the scintillator trigger electronics, DAQ computer etc., and there is about 15 meters to the "close-by elecronics area", where we can put our low voltage and high voltage power supplies, LVDS-t0-ECL converters in NIM and anode TDC's in CAMAC. Different solid colors correspond to different floor heights: white is ground level, yellow is 2.4 meters, green is 4.0 meters. The beamline is 1.24 m above the 2.4 meter floor (hence 3.64 meters above the ground).

P2" Cathode Strip Chamber and Support

Here's a picture of P2'' with the support. The P2'' chamber is a slightly modified version of P2 used for the last summer beamtest. It is 133"(338cm) long, 36"(91cm) to 60"(152cm) wide, and 8"(20cm) thick. The support is 390cm long, 130cm wide and 204+/-35cm high. We accomplish movement along the chamber by simply pulling it across the beamline, then the foot is used to fix the axis of theta rotation, then we can adjust up and down with those 2 jacks within 20" range, and, finally we can adjust phi within +-45 degrees with 0.1 degree precision. A modification of the support was required to accomodate for the RPC chamber, which is planned to be attached to the P2''.

A nice figure describing P2'' geometry. It happens to be the same as P2.