Title :
The Sudbury Neutrino Observatory electronics chain
Author :
Cowen, D.F. ; Ekenberg, T. ; Klein, J.R. ; Newcomer, F.M. ; Berg, R. Van ; De Water, R. G Van ; Wittich, P. ; Biman, A. ; Stevenson, R.L.
Author_Institution :
Dept. of Phys., Pennsylvania Univ., Philadelphia, PA, USA
fDate :
30 Oct-5 Nov 1994
Abstract :
The Sudbury Neutrino Observatory (SNO) is a second generation real time solar neutrino water Cherenkov detector using 1000 tonnes of D2O viewed by almost 10,000 photomultiplier tubes 20 cm in diameter. The electronics chain is required to provide deadtimeless sub-nanosecond time and charge measurement for photomultiplier pulses in the range of 1-1000 photoelectrons. The electronics chain must handle background event rates in excess of 1 kHz and burst rates in excess of 1 MHz. The SNO electronics is implemented with three full custom integrated circuits and standard commercial ADCs, memory, and logic. The DAQ interface is VME compatible. We will describe the SNO electronic system design including novel features of the DAQ and trigger paths
Keywords :
CMOS logic circuits; CMOS memory circuits; Cherenkov counters; analogue-digital conversion; application specific integrated circuits; cosmic ray apparatus; data acquisition; detector circuits; nuclear electronics; timing circuits; trigger circuits; ADC; Cherenkov detector; Sudbury Neutrino Observatory; background event rate; burst rate; charge measurement; custom integrated circuits; data acquisition interface; electronics; memory; time measurement; timing system; trigger; Application specific integrated circuits; Charge measurement; Data acquisition; Detectors; Logic circuits; Neutrino sources; Observatories; Photomultipliers; Pulse measurements; Solar power generation;
Conference_Titel :
Nuclear Science Symposium and Medical Imaging Conference, 1994., 1994 IEEE Conference Record
Conference_Location :
Norfolk, VA
Print_ISBN :
0-7803-2544-3
DOI :
10.1109/NSSMIC.1994.474527
