一种测氡仪标定装置设计及标定方法实验研究  

Design of a Radon Meter Calibration Device and Experimental Study on Calibration Method

作　　者：宁洪涛 周红艳 罗齐彬 黄仁桂 肖健 赵影 鲍志诚 NING Hongtao;ZHOU Hongyan;LUO Qibin;HUANG Rengui;XIA Jian;ZHAO Ying;BAO Zhicheng(Jiangxi Seismological Bureau,Nanchang 330096,China;Engineering Research Center for Seismic Disaster Prevention and Eingineering,Geological Disaster Detection of jiangxi Provinee,Nanchang 330013,China;East China University of Technology,Nanchang 330013,China)

机构地区：[1]江西省地震局,南昌330096 [2]江西省防震减灾与工程地质灾害探测工程研究中心,南昌330013 [3]东华理工大学,南昌330013

出　　处：《核电子学与探测技术》2024年第6期1053-1062,共10页Nuclear Electronics & Detection Technology

基　　金：江西省防震减灾与工程地质灾害探测工程研究中心开放基金项目(No.SDGD202017);国家自然科学基金(No.42274235)。

摘　　要：针对地震氡观测,当前面临着现有固体氡气源无法向上量值溯源和老化损坏的问题,利用老化损坏固体氡气源中的镭源设计了一种测氡仪标定装置和一种配套的标定方法,实验验证和对比评估表明,氡气在该装置中可以达到较好的衰变平衡,提出的体积置换标定法能够有效保证标定期间装置内氡浓度的稳定性,与计量技术机构常用的HD-6型多功能自控氡室的标定结果间有较好的一致性,为地震氡观测量值向上溯源提供了新的技术方法,对推动地震氡观测计量体系建设具有积极意义。同时,通过重复利用,实现了对老化损坏固体氡气源的科学处置。In view of the problems that existing solid radon sources cannot be traced up and are damaged by aging in seismic radon observation,a radon meter calibration device and a complementary calibration method are designed by using the radium source in the solid radon source.Experimental verification and comparative evaluation show that radon can achieve a satisfactory long-term decay equilibrium in this device.'The proposed volumetric displacement calibration method can effectively ensure the stability of radon concentration in the device during calibration,and has a good consistency with the calibration results of HD-6 multifunctional automatic radon chamber commonly used by metrological technica institutions.It provides a new technical method for the upward traceability of seismic radon observation values,and has positive implications for advancing the construction of the seismic radon observation metrological system.Meanwhile,the scientific disposal of solid radon sources damaged by aging is realized through reuse.

关 键 词：测氡仪 标定装置 标定方法 体积置换法 

分 类 号：T84[一般工业技术]