涂硼CsI(Tl)探测器n-γ信号仿真及数字甄别方法研究  

The Research on Simulation and Digital Pulse Shape Discrimination of Boron Coated CsI(Tl)

作　　者：郝雅雯 沈春霞 南宏杰 HAO Ya-w en;SHEN Chun-xia;NAN Hong-jie(College of Chemical Defense,Beijing 102205,China)

机构地区：[1]陆军防化学院,北京102205

出　　处：《核电子学与探测技术》2020年第1期77-82,共6页Nuclear Electronics & Detection Technology

摘　　要：根据在涂硼CsI(Tl)探测器中产生的γ射线、中子脉冲信号的特征,利用电荷比较法、上升时间法、频率梯度法、向量投影法、聚类分析法、神经网络法完成了n/γ射线甄别.结果表明了这些方法均可以实现对涂硼CsI(Tl)探测器的中子甄别,这为今后搭建涂硼CsI(Tl)探测器的中子实时甄别系统打下基础.According to the characteristics of gamma-ray and neutron pulse signals produced in boron-coated CsI(Tl)detectors,the n/gamma ray discrimination is completed by the charge comparison m ethod,rise tim e,frequency gradient m ethod,vector projection m ethod,clustering analysis method and neural network method.The results show that these methods can be achieved on the boron coated Csl(Tl)neutron detector discrimination.This will lay a foundation for building a real-time neutron discriminating system for detectors in the future.

关 键 词：脉冲形状甄别 CSI(TL)晶体 中子探测 硼反应 

分 类 号：TL816[核科学技术—核技术及应用]