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Gamma-ray detectors for intelligent, hand-held radiation monitors

Conference · · IEEE Trans. Nucl. Sci.; (United States)
OSTI ID:6785643
Small radiation detectors based on HgI/sub 2/, bismuth germanate (BGO), plastic, or NaI(Tl) detector materials were evaluated for use in small, lightweight radiation monitors. The two denser materials, HgI/sub 2/ and BGO, had poor resolution at low-energy and thus performed less well than NaI(Tl) in detecting low-energy gamma rays from bare, enriched uranium. The plastic scintillator, a Compton recoil detector, also performed less well at low gammaray energy. Two small NaI(Tl) detectors were suitable for detecting bare uranium and shielded plutonium. One became part of a new lightweight hand-held monitor and the other found use as a pole-mounted detector for monitoring hard-to-reach locations.
Research Organization:
Los Alamos Nat'l. Lab., Los Alamos, NM 87545
OSTI ID:
6785643
Report Number(s):
CONF-831015-
Conference Information:
Journal Name: IEEE Trans. Nucl. Sci.; (United States) Journal Volume: 31:1
Country of Publication:
United States
Language:
English