Large area mercuric iodide photodetectors

Conference · Wed Feb 01 00:00:00 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), Vol. 31:1; Conference: Nuclear science symposium, San Francisco, CA, USA, 19 Oct 1983
• Country of Publication: United States
• Language: English

Related Subjects

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