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- Title
Fast-Neutron Detectors Based on Surface-Barrier GaAs Sensors with an Ultrahigh-Molecular-Weight Polyethylene Converter.
- Authors
Chernykh, S. V.; Chernykh, A. V.; Britvich, G. I.; Chubenko, A. P.; Burtebayev, N.; Zazulin, D. M.; Mussayev, J.; Khodzhaev, R.; Tcherdyntsev, V. V.; Senatov, F. S.; Didenko, S. I.
- Abstract
Surface-barrier structures based on high-purity epitaxial GaAs layers with an ultrahigh-molecular-weight polyethylene converter were tested as fast-neutron detectors. The α-particle spectra and the response to fast neutrons were measured under exposure to a 241Am−Be source. The detectors demonstrated a high neutron-detection efficiency (1.22 × 10−3 counts/neutron) and an acceptable ratio of the signal to γ‑ray background (approximately 40). The possibility of using such detectors at temperatures as high as 120°C was shown.
- Subjects
DETECTORS; AUDITING standards; FAST neutrons; EPITAXIAL layers; TEMPERATURE detectors; POLYETHYLENE
- Publication
Instruments & Experimental Techniques, 2019, Vol 62, Issue 3, p312
- ISSN
0020-4412
- Publication type
Article
- DOI
10.1134/S0020441219030138