Large-area mercuric iodide photodetectors

Conference · Sat Jan 01 04:00:00 EST 1983

OSTI ID:5901233

Markakis, J; Ortale, C; Schnepple, W; Iwanczyk, J; Dabrowski, A

This article discusses the limits of the active area of mercuric iodide photodetectors imposed by the size of available crystals, electronic noise, and the uniformity of charge carrier collection. Theoretical calculations of the photodetector electronic noise are compared with the experimental results. Different entrance contacts were studied including semitransparent palladium films and conductive liquids. HgI/sub 2/ photodetectors with active area up to 4 sq cm are matched with NaI(Tl) and CsI(Tl) scintillation crystals and are evaluated as gamma radiation spectrometers.

• Research Organization: EG and G, Inc., Goleta, CA (USA); University of Southern California, Marina Del Rey (USA). Inst. for Physics and Imaging Science
• DOE Contract Number: AC08-83NV10282
• OSTI ID: 5901233
• Report Number(s): CONF-831015-2; ON: DE83013035
• Country of Publication: United States
• Language: English

Related Subjects

440101* -- Radiation Instrumentation-- General Detectors or Monitors & Radiometric Instruments
440103 -- Radiation Instrumentation-- Nuclear Spectroscopic Instrumentation
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
BETA DECAY RADIOISOTOPES
BETA-PLUS DECAY RADIOISOTOPES
GALLIUM 68
GALLIUM ISOTOPES
GAMMA SPECTROMETERS
HALIDES
HALOGEN COMPOUNDS
HOURS LIVING RADIOISOTOPES
INTERMEDIATE MASS NUCLEI
IODIDES
IODINE COMPOUNDS
ISOTOPES
MEASURING INSTRUMENTS
MERCURY COMPOUNDS
MERCURY HALIDES
MERCURY IODIDES
NAI DETECTORS
NOISE
NUCLEI
ODD-ODD NUCLEI
PARTICLE SOURCES
PHOTODETECTORS
POSITRON SOURCES
RADIATION DETECTORS
RADIATION SOURCES
RADIOISOTOPES
SCINTILLATION COUNTERS
SOLID SCINTILLATION DETECTORS
SPECTRAL RESPONSE
SPECTROMETERS