Dissertation/Thesis Abstract

The Use of Gallium Nitride as a Scintillator in a Fast Neutron Spectrometer
by Wensman, Johnathan, Ph.D., Georgetown University, 2019, 170; 13863484
Abstract (Summary)

The use of Gallium Nitride (GaN) for a fast neutron spectrometer via elastic recoil induced scintillation is discussed. As a direct band gap semiconductor, GaN provides high radiative efficiency and high photon yield per deposited unit of energy, both desirable features for a scintillator. Additionally, when correctly doped, GaN exhibits both increased emission, and decreased self-absorption of emitted photons. This work presents initial experiments and modeling which explore the use of GaN as a novel scintillator material for use in a fast neutron spectrometer. These experiments include exposure to neutron, energetic ion, beta, and photon radiations with supplemental computational work explaining observed instrument performance.

Indexing (document details)
Advisor: Currie, John F.
Commitee: Cothran, Christopher, Guardala, Noel, Liu, Amy, Mathur, Veerendra
School: Georgetown University
Department: Physics
School Location: United States -- District of Columbia
Source: DAI-B 80/11(E), Dissertation Abstracts International
Subjects: Nuclear physics
Keywords: Fast neutron spectroscopy, Gan scintillation, Neutron spectrometry
Publication Number: 13863484
ISBN: 978-1-392-19434-8
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