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Applying Novel Material Characterization Techniques using Ultrafast Laser Excitation and Neutron Diffraction in Radiation Detector Crystals

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abstract
To address outstanding issues in the growth and performance of crystals for radiation detection, I develop and employ several material characterization techniques not previously implemented in the field. Two main, interconnected issues are addressed: the cracking of certain crystals during the growth process and spatial inhomogeneity in the defect distributions of radiation detector crystals. Although the purpose of these materials is to detect high-energy gamma rays, no gamma rays were used in these studies. Instead, much can be learned from the more precise interactions of low-energy photon and neutron beams.
subject
crystal growth
inhomogeneity
neutron diffraction
radiation detection
scintillators
two-photon microscopy
contributor
Onken, Drew (author)
Williams, Richard T (committee chair)
Donati, George L (committee member)
Bonin, Keith D (committee member)
Carroll, David L (committee member)
Ucer, Kamil B (committee member)
date
2018-08-23T08:35:33Z (accessioned)
2019-02-22T09:30:14Z (available)
2018 (issued)
degree
Physics (discipline)
embargo
2019-02-22 (terms)
identifier
http://hdl.handle.net/10339/92372 (uri)
language
en (iso)
publisher
Wake Forest University
title
Applying Novel Material Characterization Techniques using Ultrafast Laser Excitation and Neutron Diffraction in Radiation Detector Crystals
type
Dissertation

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