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Title: Development of bulk GaAs room temperature radiation detectors

Abstract

This paper reports on GaAs, a wide band gap semiconductor with potential use as a room temperature radiation detector. Various configurations of Schottky diode detectors were fabricated with bulk crystals of liquid encapsulated Czochralski (LEC) semi-insulating undoped GaAs material. Basic detector construction utilized one Ti/Au Schottky contact and one Au/Ge/Ni alloyed ohmic contact. Pulsed X-ray analysis indicated pulse decay times dependent on bias voltage. Pulse height analysis disclosed non-uniform electric field distributions across the detectors tentatively explained as a consequence of native deep level donors (EL2) in the crystal.

Authors:
;  [1];  [2];  [3]
  1. Michigan Univ., Ann Arbor, MI (United States). Dept. of Nuclear Engineering
  2. Israel Atomic Energy Commission, Yavne (Israel). Soreq Nuclear Research Center
  3. Los Alamos National Lab., NM (United States)
Publication Date:
OSTI Identifier:
6703430
Report Number(s):
CONF-911106-
Journal ID: ISSN 0018-9499; CODEN: IETNAE
Resource Type:
Conference
Journal Name:
IEEE Transactions on Nuclear Science (Institute of Electrical and Electronics Engineers); (United States)
Additional Journal Information:
Journal Volume: 39:5; Conference: 1991 Institute of Electrical and Electronic Engineers (IEEE) nuclear science symposium and medical imaging conference, Santa Fe, NM (United States), 2-9 Nov 1991; Journal ID: ISSN 0018-9499
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; 74 ATOMIC AND MOLECULAR PHYSICS; SCHOTTKY BARRIER DIODES; FABRICATION; SEMICONDUCTOR DETECTORS; ALPHA SOURCES; AMERICIUM 241; ENERGY SPECTRA; GALLIUM ARSENIDES; GAMMA DETECTION; GERMANIUM; GOLD ALLOYS; KEV RANGE 10-100; KEV RANGE 100-1000; NICKEL ALLOYS; PHOTON BEAMS; TITANIUM; X-RAY EMISSION ANALYSIS; ACTINIDE ISOTOPES; ACTINIDE NUCLEI; ALLOYS; ALPHA DECAY RADIOISOTOPES; AMERICIUM ISOTOPES; ARSENIC COMPOUNDS; ARSENIDES; BEAMS; CHEMICAL ANALYSIS; DETECTION; ELEMENTS; ENERGY RANGE; GALLIUM COMPOUNDS; HEAVY NUCLEI; ION SOURCES; ISOTOPES; KEV RANGE; MEASURING INSTRUMENTS; METALS; NONDESTRUCTIVE ANALYSIS; NUCLEI; ODD-EVEN NUCLEI; PARTICLE SOURCES; PNICTIDES; RADIATION DETECTION; RADIATION DETECTORS; RADIATION SOURCES; RADIOISOTOPES; SEMICONDUCTOR DEVICES; SEMICONDUCTOR DIODES; SPECTRA; SPONTANEOUS FISSION RADIOISOTOPES; TRANSITION ELEMENTS; YEARS LIVING RADIOISOTOPES; 440104* - Radiation Instrumentation- High Energy Physics Instrumentation; 664200 - Spectra of Atoms & Molecules & their Interactions with Photons- (1992-); 440100 - Radiation Instrumentation

Citation Formats

McGregor, D S, Knoll, G F, Eisen, Y, and Brake, R. Development of bulk GaAs room temperature radiation detectors. United States: N. p., 1992. Web.
McGregor, D S, Knoll, G F, Eisen, Y, & Brake, R. Development of bulk GaAs room temperature radiation detectors. United States.
McGregor, D S, Knoll, G F, Eisen, Y, and Brake, R. Thu . "Development of bulk GaAs room temperature radiation detectors". United States.
@article{osti_6703430,
title = {Development of bulk GaAs room temperature radiation detectors},
author = {McGregor, D S and Knoll, G F and Eisen, Y and Brake, R},
abstractNote = {This paper reports on GaAs, a wide band gap semiconductor with potential use as a room temperature radiation detector. Various configurations of Schottky diode detectors were fabricated with bulk crystals of liquid encapsulated Czochralski (LEC) semi-insulating undoped GaAs material. Basic detector construction utilized one Ti/Au Schottky contact and one Au/Ge/Ni alloyed ohmic contact. Pulsed X-ray analysis indicated pulse decay times dependent on bias voltage. Pulse height analysis disclosed non-uniform electric field distributions across the detectors tentatively explained as a consequence of native deep level donors (EL2) in the crystal.},
doi = {},
url = {https://www.osti.gov/biblio/6703430}, journal = {IEEE Transactions on Nuclear Science (Institute of Electrical and Electronics Engineers); (United States)},
issn = {0018-9499},
number = ,
volume = 39:5,
place = {United States},
year = {1992},
month = {10}
}

Conference:
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