TY - JOUR
T1 - Custom HPD readout for the CMS HCAL
AU - Cushman, P.
AU - Heering, A.
AU - Ronzhin, A.
PY - 2000/3/11
Y1 - 2000/3/11
N2 - Over 10000 channels from the CMS tile/fiber hadronic calorimeter (The CMS Hadron Calorimeter TDR, CERN/LHCC 97-31, June 20, 1997) will be read out by custom 19 and 73-channel HPD's in a 4T field. Experimental constraints on the tube design have produced a faster tube with a larger active area and minimum accelerating gap. Quality assurance stations have been developed for fast processing of 600 tubes. Registration to 50 μm is done in situ, providing a custom collar with alignment pins which can be mated to a universal cookie. Lifetime measurements reveal details on aging, but operation is within CMS specifications.
AB - Over 10000 channels from the CMS tile/fiber hadronic calorimeter (The CMS Hadron Calorimeter TDR, CERN/LHCC 97-31, June 20, 1997) will be read out by custom 19 and 73-channel HPD's in a 4T field. Experimental constraints on the tube design have produced a faster tube with a larger active area and minimum accelerating gap. Quality assurance stations have been developed for fast processing of 600 tubes. Registration to 50 μm is done in situ, providing a custom collar with alignment pins which can be mated to a universal cookie. Lifetime measurements reveal details on aging, but operation is within CMS specifications.
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U2 - 10.1016/S0168-9002(99)01236-X
DO - 10.1016/S0168-9002(99)01236-X
M3 - Conference article
AN - SCOPUS:0033886225
SN - 0168-9002
VL - 442
SP - 289
EP - 294
JO - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
JF - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
IS - 1
T2 - The 2nd International Conference on New Developments in Photodetection
Y2 - 21 June 1999 through 25 June 1999
ER -