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CKOV1 at the MICE Experiment

CKOV1 at the MICE Experiment. TOF2. EMCAL. TOF0. TOF1. CKOV1. CKOV1 to perform mu/pi id w TOF0/TOF1. Progress since CM16 CKOV1 Fabrication and Installation. L. Cremaldi, CM17 CERN, Feb 24, 2007. 2 Threshold Aerogel Counters. Aerogel Counter. L. Cremaldi, CM17 CERN, Feb 24, 2007.

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CKOV1 at the MICE Experiment

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  1. CKOV1 at the MICE Experiment TOF2 EMCAL TOF0 TOF1 CKOV1 • CKOV1 to perform mu/pi id w TOF0/TOF1. • Progress since CM16 • CKOV1 Fabrication and Installation L. Cremaldi, CM17 CERN, Feb 24, 2007

  2. 2 Threshold Aerogel Counters Aerogel Counter L. Cremaldi, CM17 CERN, Feb 24, 2007

  3. ISIS Beam Line A C B

  4. Magnetic Shielding- 2D Model B BZ Btube = 10%BZ + 60% B BZ< 50g , B <5g 3.3% 17% 4.6% 48% 3.4% 41% 9.4% 58% L. Cremaldi, CM17 CERN, Feb 24, 2007

  5. - H20 fraction is negligible. - Tested with low energy betas. - Background may be dominated by d-rays, etc. L. Cremaldi, CM17 CERN, Feb 24, 2007

  6. Rate Tests L. Cremaldi, CM17 CERN, Feb 24, 2007

  7. Rate Tests L. Cremaldi, CM17 CERN, Feb 24, 2007

  8. Resistive base Transistor base prototype RCA 8854 Transistor base L. Cremaldi, CM17 CERN, Feb 24, 2007

  9. Transistor Base L. Cremaldi, CM17 CERN, Feb 24, 2007

  10. CKOV1 Electronics • CAEN V1724 • 8 Channel 14 bit 100 MS/s FlashADC • 250-500 ps t resolution • CAEN V1290 TDC • 25 ps t resolution 20 ns.div L. Cremaldi, CM17 CERN, Feb 24, 2007

  11. Light Box Assembly -Machining- UM -Nickel Plating -Ready in Spring '07 for light tests L. Cremaldi, CM17 CERN, Feb 24, 2007

  12. Radiator Box Assembly -Needed June/July ‘07. -Aerogel order in Mar’07 -4mo lead time? -Assembly in Mississippi -Ship to RAL in Jul ’07 L. Cremaldi, CM17 CERN, Feb 24, 2007

  13. - CKOV1 Platform Design-GG • Decision should be made if • RAL or US responsiblity. L. Cremaldi, CM17 CERN, Feb 24, 2007

  14. PMT + Shield Assembly • -Magnetic shields and PMT • assemblies from Treste. • Mu-metal shield needs modification • and re-annealing. • -10 PMTs checked at Trieste • before shipping to RAL. (UM) L. Cremaldi, CM17 CERN, Feb 24, 2007

  15. Mirror Flashing Concept • Mirror aluminized in 2 sections. • Large Vacuum vessel.

  16. Mirror Fabrication • CERN Facility - Andre Braem - meeting next week • FNAL Facility - Eileen Hahn - Lab7 • Large Vacuum Chamber- Off Line. • Small Chamber- On Line. 60cm od 44cm id 38cm id 90cm id L. Cremaldi, CM17 CERN, Feb 24, 2007

  17. LED Pulser quartz fiber PMT DAQ Gate • LED Pulser • Non-linear Response • Sensitive to LED Vapp • Adequate for Monitoring • Calibration of 1-Photon • LEDs mounted near PMTs • Pulser fanned out at CKOV1 • Two BNC control lines. VME/NIM PULSER L. Cremaldi, CM17 CERN, Feb 24, 2007

  18. Alignment & Self Calibration • - 1,2 PE most probable in PMT 1-4. • Small correlation with muon x,y. • Data 1,2 pe signals self calibrating • Some Alignment of CKOV1 by • balancing PMT light yield. L. Cremaldi, CM17 CERN, Feb 24, 2007

  19. CKOV1 Services • 12 45m signal cables RG-58 type. • 8 CKOV1 signals • 2-Pulser • 2 spare • Should terminate at a patch panel in the Control Room. • 10 SHV type high voltage cables. • HV supply not specified yet, may start with something simple Lecroy 4032?? • -4 Low voltage Monitor cables for humidity sensor, gas flow, etc • -Dry air supply for mirror box or silica gel packs. • - NIM Crate for Pulser and checkout. ckov1 45m Contr Room

  20. CKOV1 Schedule Mar Apr May Jun Jul Aug Sep Oct ‘07 Light Box Radiator Box Mirror Nickle Plate Aerogel Order Radiator Box Assemble PMT Check + Housing to RAL Mirror Assembly PMT Bases(FNAL) CKOV1 Stand (RAL) Mu-metal Shield Mod(??) L. Cremaldi, CM17 CERN, Feb 24, 2007

  21. Hardware/Software Experience • TOF + CKV systems installed by hardware experts. H2 Testbeam CERN • User analysis by software experts FNAL. • Specialization, wave of the future! L. Cremaldi, CM17 CERN, Feb 24, 2007

  22. Full Scale Model of the Royal Crown L. Cremaldi, CM17 CERN, Feb 24, 2007

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