SiPM-based compact time-of-flight detector for neutron spectrometry of fission samples
SiPM-based compact time-of-flight detector for neutron spectrometry of fission samples
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基于 SiPM 的紧凑型飞行时间探测器，用于裂变样品的中子能谱测量
DOI：
10.1016/j.nima.2019.03.055
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发表时间：
2020
影响因子：
1.4
通讯作者：
R. Clarke
中科院分区：
文献类型：
--
作者：
M. Bourne;S. DeBruin;R. Clarke
硅光电倍增管(SiPM)技术与快速定时探测器和电子学相结合，可以用来设计一种紧凑的飞行时间中子谱仪，能够识别相关的中子源，如钚的自发裂变。两个EJ-200有机塑料闪烁体被耦合到由Endectra设计并由SensL制造的单独的C系列SiPM阵列。这些组件被放置在彼此相距30厘米的位置，一个探测器旁边有一个252Cf源。飞行时间分布被用来计算测量的中子能量分布，当中子能量大于2 MeV时，其形状与预期的中子能量分布相比较有利。
Silicon photomultiplier (SiPM) technology, when combined with fast timing detectors and electronics, can be used to design a compact time-of-flight neutron spectrometer capable of identifying correlated neutron sources such as spontaneous fission from plutonium. Two EJ-200 organic plastic scintillators were coupled to separate C-series SiPM arrays designed by Endectra and manufactured by SensL. These assemblies were placed 30 centimeters away from each other with a252Cf source next to one detector. The time-of-flight distribution was used to compute the measured neutron energy distribution, whose shape compared favorably to the expected neutron energy distribution for neutron energies greater than 2 MeV.