驻极体法在铀尾矿库氡析出率调查中的应用研究  

Application of electret method in investigation of radon precipitation rate in uranium tailing dam

作　　者：王攀 曾志伟[2] 孙雪云 唐林军 胡鹏华[3] 张辉 WANG Pan;ZENG Zhiwei;SUN Xueyun;TANG Linjun;HU Penghua;ZHANG Hui(China Nuclear Anhui Metrology and Testing Co.Ltd.,Anhui Fuyang 236500;China Institute for Radiation Protection,Taiyuan 030006;Beijing Research Institute of Chemical Engineering and Metallurgy,CNNC,Beijing 101149)

机构地区：[1]中核安徽计量检测有限公司,安徽阜阳236500 [2]中国辐射防护研究院,太原030006 [3]核工业北京化工冶金研究院,北京101149

出　　处：《辐射防护》2022年第4期295-300,共6页Radiation Protection

摘　　要：氡析出率的测量对于我国铀矿冶设施退役治理具有重要意义,是评价铀尾矿库防氡覆盖治理效果的关键环节。针对我国铀尾矿库氡析出率调查工作量大、仪器测量周期长的问题,本研究提出基于驻极体的氡析出率技术方法,缩短氡析出率测量时间,以此增加每日布置测量点位的频次,实现对广域铀矿冶场所氡析出率的快速调查。实验室校准和现场应用结果表明,该方法装置可靠、方法可行、结果可信,在氡析出率测量点位数量相同条件下,驻极体法测量耗时是RAD7测量耗时的2/9。The measurement of radon precipitation rate is of great significance to the decommissioning of China’s uranium mining and metallurgical facilities,and is a key link in evaluating the treatment effect of uranium tailing dams against radon precipitation.In view of the large workload of investigation on radon precipitation rate in uranium tailing dams in China and the long measurement period of instruments,this study proposes a technical method based on electret radon precipitation rate,which shortens the measurement time for radon precipitation rate and increases the daily measurement points.The increased frequency of measurement can be used to quickly investigate the radon precipitation rate in wide-area uranium mining and metallurgical sites.The results of laboratory calibration and field application show that the device is reliable,the method is feasible,and the result is credible.Under the same conditions of the number of measurement points for the radon precipitation rate,the electret method is 2/9 of the RAD7 measurement time.

关 键 词：氡析出率 驻极体 高效 测量周期 

分 类 号：TL75[核科学技术—辐射防护及环境保护]