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Development and evaluation of charge-sensitive preamplifier for CsI calorimeter in the KEK B-factory

Conference · · IEEE Transactions on Nuclear Science (Institute of Electrical and Electronics Engineers); (United States)
OSTI ID:6974020
; ;  [1]; ;  [2]
  1. National Lab. for High Energy Physics, Tsukuba (Japan)
  2. Nara Women's Univ. (Japan)
In the KEK B-factory the barrel part of the electromagnetic calorimeter comprises 7,000 CsI(Tl) crystals. Each crystal has two photodiodes (HAMAMATSU S2744-03) and two preamplifiers. The capacitance of the photodiode is 100 pF at a bias voltage of 60 V and the leakage current is less than 4 nA. The authors developed a charge-sensitive preamplifier for the electromagnetic calorimeter (CsI(Tl)) in the KEK B-factory. They examined noise characteristic, dynamic range and power-supply ripple-rejection ratio on power rails.
OSTI ID:
6974020
Report Number(s):
CONF-931051--
Conference Information:
Journal Name: IEEE Transactions on Nuclear Science (Institute of Electrical and Electronics Engineers); (United States) Journal Volume: 41:4Pt1
Country of Publication:
United States
Language:
English