Quick link: cern.ch/cmstb04 Test beam 2004 Crystal tests Preparation update D Cockerill , 27.4.2004 Test beam 2004 Web page Quick link: cern.ch/cmstb04 (http://cern.ch/cms-project-h4-testbeam-2004) D Cockerill (RAL) ECAL TB Meeting, 27.4.2004

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 25nsec 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 Wed 7 July – Mon 19 July H4 ‘free’ Mon 19 July – Wed 28 July D Cockerill (RAL) ECAL TB Meeting, 27.4.2004

10 BCTP 15 SIC Bare SC assembled New SC – SC03 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

SC03 - crystal arrangement from FRONT Reference crystal 2515 0.14 2490 0.63 2479 0.82 2473 0.13 2469 1.13 2522 0.62 2526 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 2590 2580 0.69 2586 1.4 2575 0.8 2573 1.2 2579 0.49 2615 1.6 BCTP Xtal  (m-1) SIC Beam D Cockerill (RAL) ECAL TB Meeting, 27.4.2004

Induced absorption data for the 10 SIC crystals New SC – SC03 Induced absorption data for the 10 SIC crystals D Cockerill (RAL) ECAL TB Meeting, 27.4.2004

SC04 – with Apatity crystals Start to prepare SC04 for Apatity crystals ? Cantonal irradiation of another set of 10 BCTP, 10 SIC ? 10 BCTP 10 SIC from 2nd 2004 production ? 5 Apatity D Cockerill (RAL) ECAL TB Meeting, 27.4.2004

E0’ in bldg 11 E0’, with a prototype SC, moved to bldg 11 on 30 March to be connected to full ECAL R/O chain SC readout SC umbilical connected to Motherboard 25 channels MGPA VFE + FE card (SM1, 2003) = one barrel tower The VFE electronics is mounted on E0' with standard cooling bars. Blue LED pulses to front of crystals, one at a time Signals seen in correct order by full readout chain Possibility to inject light into each crystal separately from front D Cockerill (RAL) ECAL TB Meeting, 27.4.2004

E0’ 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 E0’ second cooling plate Performance The read-out with rose10 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

H4 Infrastructure Support table Designed, under construction, TA1 group Cooling system – will use main system at H4 – low flow rate line for E0’ 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 E0’ insulation Under preparation by TA1 group D Cockerill (RAL) ECAL TB Meeting, 27.4.2004

H4 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 H4 CR Precision Temperature Measurement – need to decide between M0’ PT100 system of Milano or thermister system of ETH-Z D Cockerill (RAL) ECAL TB Meeting, 27.4.2004

H4 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 380V power supply. this came from the fact that even by pushing on the local emergency stop, the 380V 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

H4 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 maurice D Cockerill (RAL) ECAL TB Meeting, 27.4.2004

Beam preparation D Cockerill (RAL) ECAL TB Meeting, 27.4.2004

Test beam planning, May 27 – July 7 D Cockerill (RAL) ECAL TB Meeting, 27.4.2004

Test beam running R-measurement Irradiate a single crystal at a time. Irradiate until crystal has lost ~5% of LY. S2 20x20mm2 counter 6.7*10-6 rads/S2 count, at shower max (assuming Gaussian beam profile, sigma 2cm). 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 GeV 3 runs with S2 at 2.5k counts/burst to get reference. 20k DAQ events each run Increase rate to 20k S2 counts/burst = 30 Rad/h (could go to 30k S2 counts/burst = 45 Rad/h if possible) Limit DAQ to take 1k events/burst (avoid large data volumes) 8 hours per crystal ? during this 8h period, take laser runs every 20 mins with beam on D Cockerill (RAL) ECAL TB Meeting, 27.4.2004

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 GeV, 25 crystals Trigger S2 20 x 20 mm2 2.5k S2 ev/burst = 1000 DAQ events 20k ev/xtal, ~10 min/xtal, Coll ± 3mm One SC calibration in 4h 2 SC calibrations in 8h D Cockerill (RAL) ECAL TB Meeting, 27.4.2004

Test beam running Wed 26 May 08.00 – 16.00? Irradiate 1st crystal S2 20k/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 (~15min*10 = 2.5hrs) Low rate calibration of surrounding xtals when any move by 0.25% (laser) from previous calibration? Low rate calibration for 2-3h to follow any annealing anomalies after irradiation Calibrate control xtal Move to next crystal etc D Cockerill (RAL) ECAL TB Meeting, 27.4.2004

H4 Expert list H4 beam line  M Haguenauer Laser operation  D Bailleux, A Bornheim Laser monitoring ? M Dejardin, P Jarry, P Verrechia DAQ  J Bourrotte, H Suter Electronics R/O  M Dejardin, R Benetta VPT high voltage  D Cockerill, C Shepherd, K Bell LV  S Singovski Cooling/DSS  L Linssen/TA1 DCS/PVSS  S. Zelepoukine, Jovan Puzovic Test beam turntable ? J-L Faure, E Pasquetto Shift list  A Holzner, G Dissertori, D Cockerill D Cockerill (RAL) ECAL TB Meeting, 27.4.2004

Detailed assembly items follow: D Cockerill (RAL) ECAL TB Meeting, 27.4.2004

Crystal + VPT arrangement from FRONT Reference crystal 2515 4521 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 2575 4830 2573 4503 2579 4879 2615 4847 BCTP Xtal VPT SIC Beam D Cockerill (RAL) ECAL TB Meeting, 27.4.2004

Test beam periods P1A, P1B, P1C, P2A 25 nsec D Cockerill (RAL) ECAL TB Meeting, 27.4.2004

E0’ – corresponding SCs in CMS Spacer numbering Column, Row 5,5 6,5 5,4 6,4 D Cockerill (RAL) ECAL TB Meeting, 27.4.2004

IP Angles at CMS 737.67mm 587.31mm 3179 mm IP to front of EE q = 16.521 o IP D Cockerill (RAL) ECAL TB Meeting, 27.4.2004

Y Z Angles for E0’, Y-Z plane  = 10.47o Beam 587.31mm 3179 mm IP to front of EE Z D Cockerill (RAL) ECAL TB Meeting, 27.4.2004

X Z Angles for E0’, X-Z plane  = 13.06o Beam 737.67mm 3179 mm IP to front of EE Z D Cockerill (RAL) ECAL TB Meeting, 27.4.2004

Position of middle of array, 390mm forwards from backplate, E0prime backplate & SCs 250mm 352mm Position of middle of array, 390mm forwards from backplate, with respect to backplate edges D Cockerill (RAL) ECAL TB Meeting, 27.4.2004

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 TA1 - CERN-PH TA1 group VP – Vladimir Postoev, INR VG – Viatcheslav Grishin (Slava), IHEP IA – Alexander Inyakin, IHEP D Cockerill (RAL) ECAL TB Meeting, 27.4.2004

Supercrystal assembly Hardware (needs+spares): SC crystals  25 EE crystals - EA SC mechanics + VPTs  1+1 Alveoles - 3 already at CERN - BJS/TA1  25+5 Tyveced Front Inserts - 75 already at CERN - BJS/TA1  1+1 sets of Rear Inserts - 3 sets already at CERN - BJS/TA1  1+1 Interface Plates - 3 already at CERN - BJS/TA1  1+1 Housings - 3 already at CERN - BJS/TA1  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

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

E0’ 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 E0’ at CERN - BJS/JR Laser(s)/photo-diodes/MEMs/mating-pieces-to-photo-diodes etc etc - JR??? E0’ mechanics  1+1 positional spacers - already at CERN - DJAC  E0prime support backplate & related ironmongery & cooling plates - already at CERN - DJAC  Mounting bolts & shoulder bolts - already at CERN - DJAC E0prime thermal enclosure, already at CERN, extra insulation – TA1 Support to mount E0prime system onto test beam turntable - TA1 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