ckov1 at the mice experiment
DESCRIPTION
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. - PowerPoint PPT PresentationTRANSCRIPT
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CKOV1 at the MICE Experiment
•CKOV1 to perform mu/pi id w TOF0/TOF1.•Progress since CM16•CKOV1 Fabrication and Installation
TOF0 CKOV1 TOF1 EMCALTOF2
L. Cremaldi, CM17 CERN, Feb 24, 2007
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2 Threshold Aerogel Counters2 Threshold Aerogel Counters
Aerogel Counter
L. Cremaldi, CM17 CERN, Feb 24, 2007
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A
B
C
ISIS Beam Line ISIS Beam Line
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Magnetic Shielding- 2D Model
9.4%
4.6% 3.4%
3.3%
58%
48% 41%
17%
Btube = 10%BZ + 60% BBZg , B <5g
BZ
B
L. Cremaldi, CM17 CERN, Feb 24, 2007
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- H20 fraction is negligible.- Tested with low energy betas.- Background may be dominated by-rays, etc.
L. Cremaldi, CM17 CERN, Feb 24, 2007
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QuickTime™ and aTIFF (Uncompressed) decompressor
are needed to see this picture.
Rate Tests
L. Cremaldi, CM17 CERN, Feb 24, 2007
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Rate Tests
L. Cremaldi, CM17 CERN, Feb 24, 2007
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Number of Photo Electrons vs Frequency
0
10
20
30
40
50
60
70
0 1000 2000 3000 4000 5000 6000 7000
Frequency (kHz)
# of PE
8in 5PE8in 10PE8in 15PE8in 20PE8in 25PE5in 5PE8inTB
Transistor base prototype
Resistive base
RCA 8854 Transistor base
L. Cremaldi, CM17 CERN, Feb 24, 2007
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Transistor Base Transistor Base
L. Cremaldi, CM17 CERN, Feb 24, 2007
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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
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-Machining- UM-Nickel Plating-Ready in Spring '07 for light tests
Light Box AssemblyLight Box Assembly
L. Cremaldi, CM17 CERN, Feb 24, 2007
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-Needed June/July ‘07.-Aerogel order in Mar’07-4mo lead time?-Assembly in Mississippi-Ship to RAL in Jul ’07
Radiator Box AssemblyRadiator Box Assembly
L. Cremaldi, CM17 CERN, Feb 24, 2007
13L. Cremaldi, CM17 CERN, Feb 24, 2007
- CKOV1 Platform Design-GG -Decision should be made if RAL or US responsiblity.
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-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)
PMT + Shield AssemblyPMT + Shield Assembly
L. Cremaldi, CM17 CERN, Feb 24, 2007
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Mirror Flashing Concept Mirror Flashing Concept
•Mirror aluminized in 2 sections.
•Large Vacuum vessel.
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Mirror Fabrication
•CERN Facility - Andre Braem - meeting next week•FNAL Facility - Eileen Hahn - Lab7
Large Vacuum Chamber- Off Line.Small Chamber- On Line.
90cm id
38cm id
L. Cremaldi, CM17 CERN, Feb 24, 2007
44cm id
60cm od
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quartz fiber PMT
DAQGate
LED Pulser
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/NIMPULSER
L. Cremaldi, CM17 CERN, Feb 24, 2007
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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
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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
Contr
Room
45m
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CKOV1 ScheduleCKOV1 Schedule
Mar Apr May Jun Jul Aug Sep Oct ‘07
Light Box
Aerogel Order
Mirror
Assemble
PMT Check + Housing to RAL
PMT Bases(FNAL)
Radiator Box
Mirror Assembly
Nickle Plate
CKOV1 Stand (RAL)
Mu-metal Shield Mod(??)
L. Cremaldi, CM17 CERN, Feb 24, 2007
Radiator Box
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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
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Full Scale Model of the Royal Crown
L. Cremaldi, CM17 CERN, Feb 24, 2007