Title :
Pulse processing electronics with anticoincident circuitry for a multi-channel portable gamma camera
Author :
Smith, L.E. ; He, Z. ; Wehe, D.K. ; Knoll, G.F.
Author_Institution :
Dept. of Nucl. Eng., Michigan Univ., Ann Arbor, MI, USA
Abstract :
The electronics for a 16-channel pulse processing system with integral anticoincident circuitry has been developed for a portable mechanically-collimated gamma-ray imaging system. Processed pulse information is passed to a PC-mounted ADC board for conversion and storage. Pulse information from coincident events in two or more detectors is vetoed so that only single-detector events are used in image reconstruction. Our system condenses 16 channels of input down to two channels of analog output: the number of the single channel that fired and the pulse height. The current system is capable of handling an event rate of about 60 kHz. The electronics are contained in a 4.5×6×8 in. (11.4×15.2×20.3 cm) box for easy transport with our gamma camera
Keywords :
analogue-digital conversion; detector circuits; gamma-ray detection; image reconstruction; nuclear electronics; pulse transformers; 11.4 cm; 15.2 cm; 16-channel pulse processing system; 20.3 cm; 60 kHz; PC-mounted ADC board; analog output; anticoincident circuitry; image reconstruction; multichannel portable gamma camera; portable mechanically-collimated gamma-ray imaging system; pulse processing electronics; single-detector events; Cameras; Gamma ray detection; Gamma ray detectors; Image reconstruction; Nuclear electronics; Nuclear imaging; Optical pulse shaping; Pulse amplifiers; Pulse circuits; Pulse shaping methods;
Conference_Titel :
Nuclear Science Symposium, 1996. Conference Record., 1996 IEEE
Conference_Location :
Anaheim, CA
Print_ISBN :
0-7803-3534-1
DOI :
10.1109/NSSMIC.1996.591461
