Neutron/gamma pulse shape discrimination in EJ-299-34 at high flux

Payne, Christopher and Sellin, Paul and Ellis, Mark and Duroe, Kirk and Jones, Ashley Richard and Joyce, Malcolm John and Randall, George and Speller, Robert (2015) Neutron/gamma pulse shape discrimination in EJ-299-34 at high flux. In: 2015 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC). IEEE, pp. 1-5. ISBN 9781467398633

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The effect of scintillator geometry on the quality of neutron/γ pulse shape discrimination (PSD) in EJ-299 plastic scintillator, using a digital charge integration PSD algorithm has been studied. It is shown that the PSD Figure of Merit (FOM) reduces as the geometry of the scintillator moves from a cube-like shape towards a flat panel shape. The PSD performance in this material at high flux irradiation is investigated with performance deteriorating at rates of ~107 photons/s. The use of EJ-299 for security applications, with a focus on active interrogation environments is explored in conjunction with a system capable of neutron/γ separation and localisation.

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27 Feb 2017 09:06
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21 Sep 2023 03:51