n-γ脉冲信号的仿真及其波形甄别技术研究

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。

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

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.