Large area mercuric iodide photodetectors

Conference · Tue Jan 31 23:00:00 EST 1984 · IEEE Trans. Nucl. Sci.; (United States)

OSTI ID:6853485

Iwanczyk, J S; Dabrowski, A J; Markakis, J M; Ortale, C; Schnepple, W F

Results of an investigation of large area mercuric iodide (HgI/sub 2/) photodetectors are reported. Different entrance contacts were studied, including semitransparent metallic films and conductive liquids. Theoretical calculations of electronic noise of these photodetectors were compared with experimental results. HgI/sub 2/ photodetectors with active area up to 4 cm/sup 2/ were matched with NaI(Tl) and CsI(Tl) scintillation crystals and were evaluated as gamma-radiation spectrometers. Energy resolution of 9.3% for gamma radiation of 511 keV with a CsI(Tl) scintillator and energy resolution of 9.0% for gamma radiation of 622 keV with a NaI(Tl) scintillator have been obtained.

• Research Organization: University of Southern California, Institute for Physics and Imaging Science, 4676 Admiraly Way, Suite 932, Marina del Ray, CA 90292
• DOE Contract Number: AC08-83NV10282
• OSTI ID: 6853485
• Report Number(s): CONF-831015-
• Journal Information: IEEE Trans. Nucl. Sci.; (United States), Journal Name: IEEE Trans. Nucl. Sci.; (United States) Vol. 31:1; ISSN IETNA
• Country of Publication: United States
• Language: English

Related Subjects

440103* -- Radiation Instrumentation-- Nuclear Spectroscopic Instrumentation
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
ALKALI METAL COMPOUNDS
CESIUM COMPOUNDS
CESIUM IODIDES
COMPARATIVE EVALUATIONS
DETECTION
ELECTROMAGNETIC RADIATION
ENERGY RANGE
ENERGY RESOLUTION
GAMMA DETECTION
GAMMA RADIATION
GAMMA SPECTROMETERS
HALIDES
HALOGEN COMPOUNDS
HGI2 SEMICONDUCTOR DETECTORS
INORGANIC PHOSPHORS
IODIDES
IODINE COMPOUNDS
IONIZING RADIATIONS
KEV RANGE
KEV RANGE 100-1000
MEASURING INSTRUMENTS
NOISE
PERFORMANCE
PHOSPHORS
PHOTODETECTORS
RADIATION DETECTION
RADIATION DETECTORS
RADIATIONS
RESOLUTION
SCINTILLATION COUNTERS
SEMICONDUCTOR DETECTORS
SOLID SCINTILLATION DETECTORS
SPECTROMETERS
SURFACE AREA
SURFACE PROPERTIES