数字化测氡的实验研究  

EXPERIMENTAL STUDY ON DIGITAL MEASURE OF RADON

作　　者：吴永信[1] 陈兰庆[1] 李彤起[1] 

机构地区：[1]中国地震局兰州地震研究所,甘肃兰州730000

出　　处：《西北地震学报》2001年第1期60-65,共6页Northwestern Seismological Journal

基　　金：中国地震局兰州地震研究所论著!编号:LC2 0 0 0 0 5 7

摘　　要：采用流通式氡气源模拟实际流程 ,对数字化测氡的各个环节以及仪器标定方法进行了实验研究 .发现计数率随气体流量的升高而降低 ,并用氡气在闪烁室中的通过时间予以解释 .指出对测氡仪器必须进行标定 ,而且必须用流通式氡气源来标定 ;在观测中应控制或测定进入闪烁室的气体流量 .The real process of digital measure of radon is simulated by flow through radon gas source.The experimental study on the instrument standardization and each procedure of digital measure of radon is made. It was found that count rate reduces while gas flowing rate increases.This fact can be explained by the lasting time of gas in the scintillation chamber.Some conclusions are drawn:instrument of the digital measure of radon must be standardized and only standardized by flow through radon gas source;gas flux of entering the scintillation chamber should be controlled or measured in the process of digital measure of radon.In addition,the radio contamination in scintillation chamber is analyzed.

关 键 词：氡气测量 数字化测氡 地震前兆 数字化台网 计数率 闪烁室 气体流量 

分 类 号：P315.724[天文地球—地震学]