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Title: Characteristics of multiwire proportional chambers for positron imaging

Conference ·
OSTI ID:4327099

Multiwire proportional chambers (MWPC) designed for use in a positron camera for nuclear medicine applications are described. The coordinated of the two anihilation 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. (auth)

Research Organization:
California Univ., Berkeley (USA). Lawrence Berkeley Lab.
DOE Contract Number:
W-7405-ENG-48
NSA Number:
NSA-29-020912
OSTI ID:
4327099
Report Number(s):
LBL-2041; CONF-731112-30
Resource Relation:
Conference: Nuclear science symposium, San Francisco, California, USA, 14 Nov 1973; Other Information: Orig. Receipt Date: 30-JUN-74
Country of Publication:
United States
Language:
English