Test beam 2004 Crystal tests Preparation update D Cockerill , 27. 4. 2004 Test beam 2004 Web page Quick link: cern. ch/cmstb 04 (http: //cern. ch/cms-project-h 4 -testbeam-2004) D Cockerill (RAL) ECAL TB Meeting, 27. 4. 2004 1
Test beam SPS MD 08. 00 -16. 00 Tue 25 may Beam 16. 00 Tue 25 May – 08. 00 Wed 9 June (~ 13 days) Scrubbing 08. 00 Wed 9 June – 08. 00 Mon 14 June 25 nsec beam 08. 00 Mon 14 June – 08. 00 Mon 21 June (7 days) Shutdown 08. 00 Mon 21 June – 08. 00 Sat 26 June Beam 08. 00 Sat 26 June – 08. 00 Wed 7 July (~10 days) Other users H 4 ‘free’ Wed 7 July – Mon 19 July – Wed 28 July D Cockerill (RAL) ECAL TB Meeting, 27. 4. 2004 2
New SC – SC 03 10 BCTP 15 SIC Bare SC assembled - HV cards/2 thermisters being mounted - Soak test end of this week - to bldg 11, end this week/early next week D Cockerill (RAL) ECAL TB Meeting, 27. 4. 2004 3
SC 03 - crystal arrangement from FRONT Reference crystal 2490 0. 63 2479 0. 82 2473 0. 13 2469 1. 13 2522 0. 62 2526 0. 62 2483 0. 58 2496 0. 55 2532 0. 53 2578 1. 16 2595 0. 9 2617 1. 04 2583 0. 99 2587 1. 25 2601 0. 74 2593 0. 84 2592 0. 9 2590 0. 62 2580 0. 69 2586 1. 4 Xtal (m-1) 2515 0. 14 2575 0. 8 2573 1. 2 2579 0. 49 2615 1. 6 BCTP SIC Beam D Cockerill (RAL) ECAL TB Meeting, 27. 4. 2004 4
New SC – SC 03 Induced absorption data for the 10 SIC crystals D Cockerill (RAL) ECAL TB Meeting, 27. 4. 2004 5
SC 04 – with Apatity crystals Start to prepare SC 04 for Apatity crystals ? Cantonal irradiation of another set of 10 BCTP, 10 SIC ? 10 BCTP 10 SIC from 2 nd 2004 production ? 5 Apatity D Cockerill (RAL) ECAL TB Meeting, 27. 4. 2004 6
E 0’ in bldg 11 E 0’, with a prototype SC, moved to bldg 11 on 30 March to be connected to full ECAL R/O chain Possibility to inject light into each crystal separately from front SC readout • • • SC umbilical connected to Motherboard 25 channels MGPA VFE + FE card (SM 1, 2003) = one barrel tower The VFE electronics is mounted on E 0' with standard cooling bars. Blue LED pulses to front of crystals, one at a time Signals seen in correct order by full readout chain D Cockerill (RAL) ECAL TB Meeting, 27. 4. 2004 7
E 0’ in bldg 11 Readout • Token-ring link board is also installed on the cooling bars • 2 fibers-bundles : 1 for the token-ring, 1 for the data, no trigger read-out MEM • Installed 3 FEM's for the monitoring : 2 qualified (4 PN diodes) for the S/R analysis; 1 reused (2 PN diodes) for laser acknowledge. • Change ferules on 6 fibers to fit in the FEM's boxes • Wait for MEM mechanics (end of April) and probably install MEM box on E 0’ second cooling plate Performance • The read-out with rose 10 and token-ring command with optical FEC is tested and operational • The noise level at the moment is about 1. 3 ADC count in the lab. This is about the same as last year. But since the number of electrons/MEV is smaller for the Endcap, the Energy equivalent noise will be higher. D Cockerill (RAL) ECAL TB Meeting, 27. 4. 2004 8
H 4 Infrastructure Support table Designed, under construction, TA 1 group Cooling system – will use main system at H 4 – low flow rate line for E 0’ cooling – direct hard wired interlock from cooling PLC to LV – cooling status from PLC to CR via ethernet Cooling in single loop: - backplate - SC cover - MEM cooling plate - electronics E 0’ insulation Under preparation by TA 1 group D Cockerill (RAL) ECAL TB Meeting, 27. 4. 2004 9
H 4 Infrastructure (cont’d) Laser system – ready from Mon April 19 VPT HV – 10 SHV cables to be laid from CR to area – NIM crate for VPT HV will be placed in H 4 CR Precision Temperature Measurement – need to decide between M 0’ PT 100 system of Milano or thermister system of ETH-Z D Cockerill (RAL) ECAL TB Meeting, 27. 4. 2004 10
H 4 Infrastructure Maurice: Hardware: no change with respect to 2003, except: 1. the camac crate containing the fiber patern units was suspected to introduce DAQ problems. Another crate found. 2. a person from the Saclay team got in touch with the 380 V power supply. this came from the fact that even by pushing on the local emergency stop, the 380 V was still ON on the table. this is now cured (the emergency stop will stop the power on the motors, but not on the control system sitting ouside of the barack; this was requested by sacalay. 3. the moving table has to be equipped for a new support for the EE module. the table is ready for receiving it. the turning tool was removed. 4. the last measurement on the triggering and beam definition support showed a misalignement of the order of 1 mm. it was aligned at the beginning of the 2003 tests. It was now aligned again. D Cockerill (RAL) ECAL TB Meeting, 27. 4. 2004 11
H 4 Infrastructure Maurice (contd) 5. the additional 10 HV cables with SHC connectors on both ends for the EE will be mounted early may. 6. the chilled water system got a new cooling tower and new pumps. it should be more efficient for a full EB supermodule. good luck D Cockerill (RAL) maurice ECAL TB Meeting, 27. 4. 2004 12
Beam preparation D Cockerill (RAL) ECAL TB Meeting, 27. 4. 2004 13
Test beam planning, May 27 – July 7 D Cockerill (RAL) ECAL TB Meeting, 27. 4. 2004 14
Test beam running R-measurement Irradiate a single crystal at a time. Irradiate until crystal has lost ~5% of LY. S 2 20 x 20 mm 2 counter 6. 7*10 -6 rads/S 2 count, at shower max (assuming Gaussian beam profile, sigma 2 cm). Use rate collimators (COLL 1 and COLL 6). Increase rate equally in X and Y Try to avoid changing momentum byte collimator (COLL 3) • • Start with a Laser/ped/temp run E=120 Ge. V 3 runs with S 2 at 2. 5 k counts/burst to get reference. 20 k DAQ events each run Increase rate to 20 k S 2 counts/burst = 30 Rad/h (could go to 30 k S 2 counts/burst = 45 Rad/h if possible) Limit DAQ to take 1 k events/burst (avoid large data volumes) 8 hours per crystal ? during this 8 h period, take laser runs every 20 mins with beam on D Cockerill (RAL) ECAL TB Meeting, 27. 4. 2004 15
Test beam running Beam 08. 00 Tue 25 May – 08. 00 Wed 9 June (~13 days) SPS burst (or spill) length = 4. 8 s, cycle length 16. 8 s Number of bursts/hour ~ 214 number of bursts/minute ~ 3. 6 Laser runs: need to be taken at 20 -30 min intervals Tue 25 May 08. 00 – 20. 00 DAQ setup with beam Hodoscope checks Position of array wrt beam Laser runs, ped runs Tue/Wed 20. 00 – 08. 00 Calibration at 120 Ge. V, 25 crystals Trigger S 2 20 x 20 mm 2 2. 5 k S 2 ev/burst = 1000 DAQ events 20 k ev/xtal, ~10 min/xtal, Coll ± 3 mm One SC calibration in 4 h 2 SC calibrations in 8 h D Cockerill (RAL) ECAL TB Meeting, 27. 4. 2004 16
Test beam running Wed 26 May 08. 00 – 16. 00? Irradiate 1 st crystal S 2 20 k/burst Follow laser & beam signal Low rate calibration of crystal after every 0. 5 % drop (beam)? ~10 reference low rate calibrations from 0. 5 – 5% drop (~15 min*10 = 2. 5 hrs) Low rate calibration of surrounding xtals when any move by 0. 25% (laser) from previous calibration? Low rate calibration for 2 -3 h to follow any annealing anomalies after irradiation Calibrate control xtal Move to next crystal etc D Cockerill (RAL) ECAL TB Meeting, 27. 4. 2004 17
H 4 Expert list H 4 beam line Laser operation Laser monitoring ? M Dejardin, P Jarry, P Verrechia DAQ J Bourrotte, H Suter Electronics R/O VPT high voltage LV M Dejardin, R Benetta Cooling/DSS DCS/PVSS L Linssen/TA 1 Test beam turntable ? J-L Faure, E Pasquetto Shift list A Holzner, G Dissertori, D Cockerill (RAL) M Haguenauer D Bailleux, A Bornheim D Cockerill, C Shepherd, K Bell S Singovski S. Zelepoukine, Jovan Puzovic ECAL TB Meeting, 27. 4. 2004 18
Detailed assembly items follow: D Cockerill (RAL) ECAL TB Meeting, 27. 4. 2004 19
Crystal + VPT arrangement from FRONT Reference crystal 2490 4528 2479 4671 2473 4537 2469 4523 2522 4874 2526 4525 2483 4529 2496 4872 2532 4882 2578 4634 2595 4600 2617 4800 2583 4570 2587 4832 2601 4822 2593 4831 2592 4809 2590 4557 2580 4821 2586 4877 Xtal VPT 2515 4521 2575 4830 2573 4503 2579 4879 2615 4847 BCTP SIC Beam D Cockerill (RAL) ECAL TB Meeting, 27. 4. 2004 20
Test beam periods P 1 A, P 1 B, P 1 C, P 2 A 25 nsec D Cockerill (RAL) ECAL TB Meeting, 27. 4. 2004 21
E 0’ – corresponding SCs in CMS Spacer numbering Column, Row 5, 5 5, 4 D Cockerill (RAL) 6, 5 6, 4 ECAL TB Meeting, 27. 4. 2004 22
Angles at CMS 737. 67 mm 587. 31 mm 3179 mm IP to front of EE = 38. 526 o q = 16. 521 o IP D Cockerill (RAL) ECAL TB Meeting, 27. 4. 2004 23
Angles for E 0’, Y-Z plane Y = 10. 47 o Beam 587. 31 mm 3179 mm IP to front of EE Z D Cockerill (RAL) ECAL TB Meeting, 27. 4. 2004 24
Angles for E 0’, X-Z plane X = 13. 06 o Beam 737. 67 mm 3179 mm IP to front of EE Z D Cockerill (RAL) ECAL TB Meeting, 27. 4. 2004 25
E 0 prime backplate & SCs 250 mm 352 mm Position of middle of array, 390 mm forwards from backplate, with respect to backplate edges D Cockerill (RAL) ECAL TB Meeting, 27. 4. 2004 26
Preparation Responsibles: EA - Etienette Auffray, CERN KWB - Ken Bell, RAL DJAC - Dave Cockerill, RAL DB – David Bailleux, Minn MD - Marc Dejardin, Saclay MH – Maurice Haguenauer, LLR RB – Robert Benetta, CERN PSF - Paul Flower - RAL HFH - Helen Heath - Bristol PL - Pierre Lecomte - ETHZ ABL - Tony Lodge, RAL JR - John Rander, Saclay BJS - Brian Smith, RAL TA 1 - CERN-PH TA 1 group VP – Vladimir Postoev, INR VG – Viatcheslav Grishin (Slava), IHEP IA – Alexander Inyakin, IHEP D Cockerill (RAL) ECAL TB Meeting, 27. 4. 2004 27
Supercrystal assembly Hardware (needs+spares): SC crystals 25 EE crystals - EA SC mechanics + VPTs 1+1 Alveoles - 3 already at CERN - BJS/TA 1 25+5 Tyveced Front Inserts - 75 already at CERN - BJS/TA 1 1+1 sets of Rear Inserts - 3 sets already at CERN - BJS/TA 1 1+1 Interface Plates - 3 already at CERN - BJS/TA 1 1+1 Housings - 3 already at CERN - BJS/TA 1 25+5 VPTs - ~48 already at CERN - DJAC 1+1 calibrated thermistors & cables (what connectors? ) - PSF D Cockerill (RAL) ECAL TB Meeting, 27. 4. 2004 28
Supercrystal assembly + umbilical SC mechanics + VPTs (contd) Glue for Inserts - already at CERN - BJS/DJAC Glue dispensors for Inserts - already at CERN - BJS/DJAC RTV Glue for VPTs - on order in the UK - BJS Glue dispensors for VPTs - ? ? ? - BJS/DJAC 3 Glueing Jigs for VPTs to crystals - already at CERN - DJAC 15 Centering tubes/weights for glueing - already at CERN - BJS/DJAC Bar-code reader for crystal serial numbers (or temporary labels? ? ? ) - DJAC Jig for manipulating alveolar during construction – ETH-Z/PL Supercrystal lifting "handle" - already at CERN - DJAC SC umbilical 5+2 HV boards - presently at RAL - ABL 1+1 umbilical signal looms - ABL 1+1 umbilical HV (SHV) cable pairs - ABL Test gear for supercrystal soak test at CERN - ABL/HFH/DJAC/KWB/VP/VG/AI D Cockerill (RAL) ECAL TB Meeting, 27. 4. 2004 29
E 0’ Monitoring 50 Porte-Ferrules - already at CERN - BJS/DJAC Tooling for Porte-Ferrules - already at CERN - BJS/DJAC 1 Level-1 EE fibre optic harnesses - 1 presently on E 0’ at CERN - BJS/JR Laser(s)/photo-diodes/MEMs/mating-pieces-to-photo-diodes etc - JR? ? ? E 0’ mechanics 1+1 positional spacers - already at CERN - DJAC E 0 prime support backplate & related ironmongery & cooling plates - already at CERN - DJAC Mounting bolts & shoulder bolts - already at CERN - DJAC E 0 prime thermal enclosure, already at CERN, extra insulation – TA 1 Support to mount E 0 prime system onto test beam turntable - TA 1 design/ fabricate Readout HV system for beam tests - KWB EE Mothercard/connectors/pigtail - ABL Full readout chain, LV system, MEM, etc - MD 1 set of EE cooling bars & related mechanics etc - already at CERN - JAH D Cockerill (RAL) ECAL TB Meeting, 27. 4. 2004 30
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