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便携式充氙电离室型高分辨γ谱仪是近年来电离室探测器研究的一个新的突破。本工作在目前国外出现的具有良好能量分辨率且抗微颤噪声的柱型双阳极高气压充氙电离室基础上,依照国外的经验研制一种新型结构的高气压充氙电离室,其设计参数列于表1。设计结构如图1所示,采用共面栅极阳极结构:选用12根阳极丝,其中的6根为一组,并联相同电压,以组成收集极和非收集极,两极间电压略有差别,要求阳极线尺寸和位置精确一致;两根电压线进口,两根信号线经甄别调节后加为一个信号;一根地线出口,总共5根线。
Portable Charge Xenon ionization chamber high-resolution γ-ray spectrometer is a new breakthrough in ionization chamber detector research in recent years. Based on the experience of foreign countries, a new type of high-pressure xenon-ionization ionization chamber with high energy resolution and anti-chatter noise has been developed in this work. The parameters are listed in Table 1. Design structure shown in Figure 1, the use of coplanar gate anode structure: the selection of 12 anode wire, of which 6 for a group, parallel with the same voltage to form collector and non-collector, the voltage between the two poles slightly different, Requires anode wire size and position exactly the same; two voltage lines imported, two signal lines after screening plus a signal; a ground outlet, a total of 5 lines.