Title :
Two fast data acquisition and processing systems for a compact gamma-camera
Author :
He, Z. ; Ramsden, D. ; Holder, S.M. ; Duncan, S.H.
Author_Institution :
Dept. of Phys., Southampton Univ., UK
Abstract :
A compact gamma-camera has been constructed using a 3-mm-thick single NaI(Tl) crystal viewed by a 5-in-diameter Hamamatsu position-sensitive photomultiplier tube (R3292). In order to use this system in applications where the counting rate is high, such as in dynamic scintigraphy and industrial nondestructive testing, a fast data acquisition and processing system is very important. The design and operation of two fast data collection and processing systems capable of handling events within 30 μs are presented. One of the systems is based on the use of a commercial Vector 32C/8500 processor board, while the other makes use of multiple T805 transputers. A comparison of the two systems is presented
Keywords :
gamma-ray detection and measurement; medical image processing; nondestructive testing; physics computing; radiography; radioisotope scanning and imaging; scintillation counters; sodium compounds; thallium; Hamamatsu position-sensitive photomultiplier tube; commercial Vector 32C/8500 processor board; compact gamma-camera; data processing systems; design; dynamic scintigraphy; fast data acquisition; industrial nondestructive testing; multiple T805 transputers; operation; single NaI:Tl crystal; Anodes; Cameras; Cathodes; Computer displays; Data acquisition; Detectors; Electrons; Photomultipliers; Resistors; Wires;
Conference_Titel :
Nuclear Science Symposium and Medical Imaging Conference, 1992., Conference Record of the 1992 IEEE
Conference_Location :
Orlando, FL
Print_ISBN :
0-7803-0884-0
DOI :
10.1109/NSSMIC.1992.301069
