航空γ能谱仪基础知识以及应用  

作　　者：丘安顺 毛伟业 杨钢 马俊腾 罗航 翟刚 

机构地区：[1]中国冶金地质总局地球物理勘查院,河北保定071051

出　　处：《科技创新与应用》2018年第25期187-188,共2页Technology Innovation and Application

摘　　要：航空γ能谱仪测量系统由碘化钠晶体(Na I)和光电倍增管为主要部件航空γ能谱测量系统,多采用4条下测晶体和1条上测晶体组合成航空γ能谱测量系统的探头,设计了温度传感器、电流反馈型前置放大器等,实现了γ光子与核信号的转换;通过高速ADC与数据采集系统实现模拟核信号的数字化。The measurement system of airborne γ spectrometer is mainly composed of sodium iodide crystal （NaI） and photomultiplier tube （PMT）. The probe of airborne γ energy spectrum measurement system is composed of four lower crystals and one upper crystal, and the temperature sensor and current feedback preamplifier are designed to realize the conversion between γphotons and nuclear signals, and the analog nuclear signals are digitized by high-speed ADC and data acquisition system.

关 键 词：航空γ能谱仪测量 Γ能谱仪 应用 

分 类 号：P631[天文地球—地质矿产勘探]