A first comparison of the responses of a He-4-based fast-neutron detector and a NE-213 liquid-scintillator reference detector
A first comparison of the responses of a He-4-based fast-neutron detector and a NE-213 liquid-scintillator reference detector
复制标题
He-4 快中子探测器和 NE-213 液体闪烁体参考探测器响应的首次比较
DOI：
10.1016/j.nima.2015.04.058
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发表时间：
2015
影响因子：
1.4
通讯作者：
H. Svensson
中科院分区：
文献类型：
--
作者：
R. Jebali;J. Scherzinger;J. Scherzinger;J. Annand;R. Chandra;G. Davatz;K. Fissum;K. Fissum;H. Friederich;U. Gendotti;R. Hall;R. Hall;E. Hakansson;K. Kanaki;M. Lundin;D. Murer;B. Nilsson;B. Nilsson;A. Rosborg;H. Svensson
对新型 4 He 加压闪烁探测器和使用 Am/Be 混合场中子和伽马射线源以及高分辨率闪烁脉冲数字化仪的 NE-213 液体闪烁体参考探测器的脉冲形状辨别特性进行了首次比较。特别是，研究了两个快中子探测器区分中子和伽马射线的能力。 NE-213 液体闪烁体参比池响应源的伽马射线场而产生各种闪烁光产量。形成鲜明对比的是，由于 4 He 气体体积的大小和压力，基于 4 He 的探测器在相同的伽马射线场中记录到了 750 keV ee 的最大闪烁光产量。 4 He 探测器对闪烁光产量超过 750 keV ee 的粒子的脉冲形状辨别非常出色。高于 750 keV ee 时，其信号明确是中子，从而能够完全根据产生的闪烁光量进行粒子识别。
A first comparison has been made between the pulse-shape discrimination characteristics of a novel 4 He-based pressurized scintillation detector and a NE-213 liquid-scintillator reference detector using an Am/Be mixed-field neutron and gamma-ray source and a high-resolution scintillation-pulse digitizer. In particular, the capabilities of the two fast neutron detectors to discriminate between neutrons and gamma-rays were investigated. The NE-213 liquid-scintillator reference cell produced a wide range of scintillation-light yields in response to the gamma-ray field of the source. In stark contrast, due to the size and pressure of the 4 He gas volume, the 4 He-based detector registered a maximum scintillation-light yield of 750 keV ee to the same gamma-ray field. Pulse-shape discrimination for particles with scintillation-light yields of more than 750 keV ee was excellent in the case of the 4 He-based detector. Above 750 keV ee its signal was unambiguously neutron, enabling particle identification based entirely upon the amount of scintillation light produced.