n-γ脉冲信号的仿真及其波形甄别技术研究  

Simulation of neutrons and gamma pulse signal and research on the pulse shape discrimination technology

作　　者：左广霞[1] 何彬[1] 许鹏[1] 邱晓林 马文彦[1] 黎素芬[1] 

机构地区：[1]第二炮兵工程大学,西安710025

出　　处：《核技术》2012年第5期365-368,共4页Nuclear Techniques

摘　　要：在中子探测过程中实现n-γ脉冲信号的甄别对中子探测具有重要意义。本文在LabVIEW平台上实现了n-γ脉冲信号仿真单元,并用电荷比较法和脉冲持续时间法对其产生的n-γ脉冲信号进行了数字化甄别。仿真实验及数据处理结果表明,电荷比较法与脉冲持续时间法都能实现n-γ甄别,但后者的甄别能力更强。In neutrons detection,it is important to discriminate the neutron signals from the gamma-ray background.In this article,simulation of neutrons and gamma pulse signals is developed based on the LabVIEW platform.Two digital algorithms of the charge comparison method and the pulse duration time method are realized using 10000 simulation signals.Experimental results show that neutron and gamma pulse signals can be discriminated by the two methods,and the pulse duration time method is better than the charge comparison method.

关 键 词：仿真 脉冲波形甄别 LABVIEW 

分 类 号：TL8[核科学技术—核技术及应用]