共轴对称组合中子探测器灵敏度研究

Research on Sensitivity of Coaxial Symmetric Combined Neutron Detector

在某些应用场合,要求中子计数管具有快收集时间、高中子灵敏度、低工作电压等特性,但是单一只中子正比管无法满足全部的要求,这时需要使用多支中子计数管组合的方式来实现测景目的。本文通过对三种常用中子正比计数管类型进行三支中子正比计数管共轴对称组合,并对其进行实验,得出了其在组合后的对中子灵敏度等特性的影响。

In some application, the neutron counter is required to have the characteristics of fast collection time, high sensitivity, low working voltage, etc., but a single neutron proportional tube cannot meet all the requirements. A combination of multiple neutron counting tubes is needed to achieve the measurement purpose. In this paper, three types of commonly used neutron proportional counter are combined with three neutron proportional counter coaxial symmetry, and the effects of the combination on neutron sensitivity and other characteristics are obtained.