DocumentCode
813914
Title
Characteistics of Multiwire Proportional Chambers for Positron Imaging
Author
Lim, C.B. ; Chu, D. ; Kaufman, L. ; Perez-Mendez, V. ; Sperindet, J.
Author_Institution
Department of Radiology University of California San Francisco, California and Lawrence Berkeley Laboratory University of California Berkeley, California
Volume
21
Issue
1
fYear
1974
Firstpage
85
Lastpage
88
Abstract
We describe multivire proportional chambers (MWPC) designed for use in a positron camera for Nuclear Medicine applications. The coordinates of the two annihilation gamma rays are detected in the chamber by their interaction with thin lead converters placed on both faces of each chamber. In order to obtain reasonable efficiencies (10%) the lead converters have been made in a square honeycomb-like structure, which increases the effective surface area and also permits the application of a drift field to extract the electrons into the active area of the MWPC.
Keywords
Cameras; Collision mitigation; Electrons; Gamma ray detection; Gamma ray detectors; Gamma rays; Lead; Position sensitive particle detectors; Positrons; Wires;
fLanguage
English
Journal_Title
Nuclear Science, IEEE Transactions on
Publisher
ieee
ISSN
0018-9499
Type
jour
DOI
10.1109/TNS.1974.4327448
Filename
4327448
Link To Document