论文标题
中子 - $γ$与有机闪烁体的歧视：内在的脉冲形状和光屈服贡献
Neutron-$γ$ discrimination with organic scintillators: Intrinsic pulse shape and light yield contributions
论文作者
论文摘要
使用相同的设置和数字电子设备对中子$γ$脉冲形状歧视（PSD）进行了比较研究。闪光灯包括塑料（EJ-299-33和塑料原型），单晶（Stilbene和最近的掺杂$ P $ - 苯基）和液体（BC501A，NE213和氘代液体BC537）。首先，比较了不同闪烁体的总体PSD性能，并确定给定歧视质量的阈值中子能量。然后，使用统计参数，对闪烁材料的PSD功能有两个固有的贡献，即散布：中子和$γ$ rays引起的光产率和特定的脉冲形状。这种分离提供了对有机闪烁体的行为的额外见解，并可以详细比较各种材料的歧视性能。在此分析的基础上，讨论了当前有机闪烁体和最近提出的替代闪烁体的局限性。
A comparative study of the neutron-$γ$ Pulse Shape Discrimination (PSD) with seven organic scintillators is performed using an identical setup and digital electronics. The scintillators include plastics (EJ-299-33 and a plastic prototype), single crystals (stilbene and the recent doped $p$-terphenyl) and liquids (BC501A, NE213 and the deuterated liquid BC537). First, the overall PSD performance of the different scintillators is compared and threshold neutron energies for a given discrimination quality are determined. Then, using statistical arguments, two intrinsic contributions to the PSD capability of the scintillating materials are disentangled: the light yield and the specific pulse shapes induced by neutrons and $γ$-rays. This separation provides additional insight into the behaviour of organic scintillators and allows a detailed comparison of the discrimination performance of the various materials. On the basis of this analysis, limitations of current organic scintillators and of recently proposed alternative scintillators are discussed.
