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Proceedings Paper

GaN as a detector of a-particles and neutrons
Author(s): A. Y. Polyakov; N. B. Smirnov; A. V. Govorkov; In-Hwan Lee; S. J. Pearton; N. G. Kolin; I. L. Gazizov; V. M. Zalyetin
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Paper Abstract

Properties of GaN radiation detectors are analyzed. It is shown that present day epitaxial material is suitable for detection of α-particles with the charge collection efficiency close to 100%. Such detectors can operate at temperatures of at least 60°C and withstand irradiation with reactor neutrons fluences higher than 1015 cm-2. They keep the collection efficiency at 30% even after irradiation with 2×1016 cm-2 neutron fluence. Registration of thermal neutrons with GaN detectors can also be achieved by using 10B converter and the efficiency of registration is determined by the 10B conversion efficiency from neutrons to low energy a-particles.

Paper Details

Date Published: 24 January 2011
PDF: 12 pages
Proc. SPIE 7945, Quantum Sensing and Nanophotonic Devices VIII, 79451F (24 January 2011); doi: 10.1117/12.869686
Show Author Affiliations
A. Y. Polyakov, Institute of Rare Metals (Russian Federation)
N. B. Smirnov, Institute of Rare Metals (Russian Federation)
A. V. Govorkov, Institute of Rare Metals (Russian Federation)
In-Hwan Lee, Chonbuk National Univ. (Korea, Republic of)
S. J. Pearton, Univ. of Florida (United States)
N. G. Kolin, Karpov Institute of Physical Chemistry (Russian Federation)
I. L. Gazizov, International Univ. of Nature, Society and Humanity (Russian Federation)
V. M. Zalyetin, Institute of Physical-Technical Problems (Russian Federation)

Published in SPIE Proceedings Vol. 7945:
Quantum Sensing and Nanophotonic Devices VIII
Manijeh Razeghi; Rengarajan Sudharsanan; Gail J. Brown, Editor(s)

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