高氡浓度地震监测泉在标准仪器校准方法中的应用研究  

HIGH RADON CONCENTRATION SEISMIC MONITORING SPRING IN STANDARD INSTRUMENT RESEARCH ON APPLICATION OF CALIBRATION METHOD

作　　者：李娜[1] 祖丽皮牙·艾尼瓦尔 李新勇[1] 任宏微 黄建明[1] LI Na;Zulipiya Ainiwaer;LI Xin-yong;REN Hong-wei;HUANG Jian ming(Earthquake Agency of Xinjiang Uygur Autonomous Region,Urumqi 830011,Xinjiang,China;National Institute of Natural Hazards,Beijing 100085,China)

机构地区：[1]新疆维吾尔自治区地震局,新疆乌鲁木齐830011 [2]国家自然灾害防治研究院,北京100085

出　　处：《内陆地震》2024年第3期250-257,共8页Inland Earthquake

基　　金：新疆地震科学基金(202210);新疆北天山地震构造带地球化学特征与震情强化跟踪技术研究(ZDJ2017-27)。

摘　　要：基于水氡浓度为20000~100000 Bq·m^(-3)的新09泉、新10泉和新15泉,利用国际刻度参考装置Alpha GUARD测氡仪及其水氡测量组件,开展标准仪器传递校准实验研究,校准K值相对误差分别为3.60%、-0.81%及2.09%。实验结果与氡气固体源校准结果对比表明,水氡浓度在20000 Bq·m^(-3)以上水样可以通过标准仪器校准新方法检验,且利用不同水氡浓度的泉水不会影响校准结果准确性。新疆地球物理观测中心可利用高氡浓度的日常监测泉,将Alpha GUARD测氡仪作为标准仪器对FD-125型氡钍分析仪进行校准,从而替代固体氡源校准。本研究为地震监测氡观测的校准新方法操作技术规程及推广试用提供了数据支撑。Based on New 09 spring,New 10 spring and New 15 spring with water radon concentration of 20000~100000 Bq·m^(-3),the standard instrument transfer calibration experiment was carried out by using the international scale reference device Alpha GUARD radon measuring instrument and its water radon measuring component.The relative errors of calibration K values were 3.60%,-0.81%and 2.09%,respectively.The comparison between the experimental results and the calibration results of radon gas solid source shows that the water samples with water radon concentration above 20000 Bq·m^(-3)can be tested by the new calibration method of standard instrument,and the use of spring water with different water radon concentration will not affect the accuracy of the calibration results.The Alpha GUARD radon measuring instrument can be used as a standard instrument to calibrate the FD-125 radon and thorium analyzer by using the daily monitoring spring with high radon concentration in the Xinjiang Seismic Underground Fluid Comprehensive Station,so as to replace the calibration of solid radon source.This study provides data support for the operation technical regulations and promotion trial of the new calibration method for radon observation in seismic monitoring.

关 键 词：地震监测 水氡 K值 标定方法 Alpha GUARD测氡仪 

分 类 号：P315.7[天文地球—地震学]