Title :
Sum and buffer amplifier for lead-glass barrel calorimeter in the TOPAZ detector
Author :
Ujiie, N. ; Ikeda, M. ; Inaba, S.
Author_Institution :
Nat. Lab. for High Energy Phys., Ibaraki, Japan
Abstract :
Analog sum-and-buffer amplifiers have been developed to provide a fast trigger signal from the lead-glass electromagnetic calorimeter in the TOPAZ detector for TRISTAN e/sup +/e/sup -/ collider experiments. The total kick-back noise from the 4300-channel gate signals of the LeCroy FASTBUS ADC 1885N has been suppressed to less than 40 mV (equivalent to a 0.4-GeV electron signal). The performance of the amplifiers is described.<>
Keywords :
radiation detection and measurement; scintillation counters; LeCroy FASTBUS ADC 1885N; TOPAZ detector; TRISTAN e/sup +/e/sup -/ collider experiments; fast trigger signal; lead-glass barrel calorimeter; sum-and-buffer amplifiers; total kick-back noise; Circuit noise; Counting circuits; Detectors; Electromagnetic interference; Electrons; Fastbus; Noise level; Noise reduction; Noise shaping; Superconducting device noise;
Journal_Title :
Nuclear Science, IEEE Transactions on
