新型流气式固体氡源用于氡仪器标定的实验研究  

An Experimental Study on The Application of New Gas Flow Solid Radon Source in Radon Instrument Calibration

作　　者：张清秀[1] 孔令昌[2] 江劲军[1] 杨鼎宏[1] 尤宇星[1] 申燕[1] 王林[1] 林文峰 

机构地区：[1]福建省地震局,福建福州350001 [2]中国地震台网中心,北京100045 [3]泉州市地震局,福建泉州362000

出　　处：《华南地震》2012年第3期60-67,共8页South China Journal of Seismology

基　　金：中国地震局"地震监测;预报;科研三结合"研究课题

摘　　要：GD-L2流气式固体氡气源是一种能产生确定量氡气的发生器,它利用连续恒定的空气流过特殊的固体含镭物质,形成稳定氡浓度的气流源,既可标定间歇取样的测氡仪又可以标定连续测氡仪。对固体氡气源的原理、标定方法、安全性能等进行论述,着重对多次标定的结果进行对比分析,提出影响固体氡气源稳定性的因素及其解决方案。通过两年来的标定及实验,认为该装置可以用于FD-125型氡钍分析器及SD-3A型数字化自动测氡仪的检查标定工作。GD-L2 gas flow solid radon source is a generator that generates specific amount of radon. It makes a continuous and constant flow of air go through a special solid radium- containing substance, forming a gas stream source with stable radon density, to calibrate intermittent sampling radon monitor and continuous radon monitor as well. This paper elaborates the principles, calibration methods and safety features, etc. of solid radon source, focusing on the comparative analysis of multiple calibration results, which leads to the identification of influencing factors of solid radon source stability and its solutions. Through two years＂ calibrations and experiments, it is convinced that the device can be applied in inspection and calibration work for FD-125 radon-thorium analyzer and SD-3A automatic digital radon monitor.

关 键 词：新型固体氡气源 仪器标定 稳定性影响因素 实验研究 

分 类 号：P315.62[天文地球—地震学]