β-γ混合场测量中的粒子甄别研究概述

摘要

β-γ混合辐射场测量中需要甄别入射到探测器中的粒子类型,旨在为进一步开展β/γ甄别和测量研究提供有价值的资料.论文概述并分析了粒子甄别方法及其原理,指出叠层闪烁探测器是最适合用于现场β/γ甄别和测量的解决方案.从探测器结构设计与判定方法和脉冲形状甄别算法两个角度回顾了利用叠层闪烁探测器甄别β/γ粒子的研究现状,指出现有研究中存在的一些问题,并对进一步研究提出相关改进建议.%It's necessary to discriminate the type of incident particle when implementing radiation measurement work in β-γ mixed field and this paper aims to provide reference for the advanced research on β/γ discrimination and measurement.Methods for particle discrimination, as well as their theories, were summarized and analyzed.It proved that employing a phoswich detector was the most suitable solution in discriminating and measuring β/γ.The research status was reviewed from two points: designing method of the phoswich structure as well as its decision method and pulse shape discrimination algorithm.Some problems of present researches were pointed out and relative suggestions were put forward as well.