高通量下ejj -299-34中子/伽马脉冲形状判别

C. Payne, P. Sellin, M. Ellis, K. Duroe, A. Jones, M. Joyce, G. Randall, R. Speller
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引用次数: 13

摘要

采用数字电荷积分PSD算法,研究了闪烁体几何形状对EJ-299塑料闪烁体中子/γ脉冲形状识别质量的影响。结果表明,当闪烁体的几何形状从立方体形状向平板形状移动时,PSD优值(FOM)减小。研究了该材料在高通量辐照下的PSD性能,当辐照速率为~107光子/秒时,PSD性能恶化。EJ-299用于安全应用,重点是与能够中子/γ分离和定位的系统一起探索主动审讯环境。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Neutron/gamma pulse shape discrimination in EJ-299-34 at high flux
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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