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Volume 14
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10.3390/cryst14020128
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Article

Comparative Radiation Response of GaN and Ga2O3 Exposed to Ground-Level Neutrons

by
Jean-Luc Autran
1,2,* and
Daniela Munteanu
1
1
Aix-Marseille Univ, CNRS, IM2NP (UMR 7334), 13397 Marseille CEDEX 20, France
2
Univ. Rennes, CNRS, IPR (UMR 6251), 35042 Rennes CEDEX, France
*
Author to whom correspondence should be addressed.
Crystals 2024, 14(2), 128; https://doi.org/10.3390/cryst14020128
Submission received: 27 December 2023 / Revised: 21 January 2024 / Accepted: 24 January 2024 / Published: 26 January 2024
(This article belongs to the Section Inorganic Crystalline Materials)
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Abstract

In this work, the radiation response of bulk GaN and Ga2O3 materials exposed to ground-level neutrons is studied by Geant4 numerical simulation, considering the whole atmospheric neutron spectrum at sea level, from thermal to high energies (GeV). The response of the two materials is compared in terms of the number and type of interactions and the nature of the secondary products produced, particularly in nuclear reactions. Our results highlight the importance of 14N(n,p)14C neutron capture in the radiation response of GaN, leading to large differences in the behavior of the two materials in terms of susceptibility to thermal and intermediate-energy (below 1 MeV) neutrons.
Keywords: atmospheric neutrons; neutron–semiconductor interactions; wide-bandgap semiconductors; gallium nitride; gallium oxide; nuclear reactions; Geant4; numerical simulations; radiation effects on electronics; single-event effects atmospheric neutrons; neutron–semiconductor interactions; wide-bandgap semiconductors; gallium nitride; gallium oxide; nuclear reactions; Geant4; numerical simulations; radiation effects on electronics; single-event effects

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MDPI and ACS Style

Autran, J.-L.; Munteanu, D. Comparative Radiation Response of GaN and Ga2O3 Exposed to Ground-Level Neutrons. Crystals 2024, 14, 128. https://doi.org/10.3390/cryst14020128

AMA Style

Autran J-L, Munteanu D. Comparative Radiation Response of GaN and Ga2O3 Exposed to Ground-Level Neutrons. Crystals. 2024; 14(2):128. https://doi.org/10.3390/cryst14020128

Chicago/Turabian Style

Autran, Jean-Luc, and Daniela Munteanu. 2024. "Comparative Radiation Response of GaN and Ga2O3 Exposed to Ground-Level Neutrons" Crystals 14, no. 2: 128. https://doi.org/10.3390/cryst14020128

APA Style

Autran, J.-L., & Munteanu, D. (2024). Comparative Radiation Response of GaN and Ga2O3 Exposed to Ground-Level Neutrons. Crystals, 14(2), 128. https://doi.org/10.3390/cryst14020128

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