嘉兴市天然γ辐射水平累积监测及所致公众照射剂量  

Cumulative monitoring of natural γ radiation level and its public exposure dose in Jiaxing City

作　　者：赵欢欢 王海勇 陈辉 沈耀宗 张怡平 Zhao Huanhuan;Wang Haiyong;Chen Hui;Shen Yaozong;Zhang Yiping(Zhejiang Provincial Jiaxing Ecological Environment Monitoring Center,Jiaxing Zhejiang 314000,China)

机构地区：[1]浙江省嘉兴生态环境监测中心,浙江嘉兴314000

出　　处：《环境与发展》2020年第11期133-134,共2页Environment & Development

摘　　要：了解嘉兴市天然γ辐射水平剂量率现状水平及变化趋势,对公众受照剂量进行评估,为全面开展辐射监测预警提供依据和经验。采用累积监测方法,通过热释光剂量计LiF(Mg,Cu,P)对全市136个点位进行累积监测,使用RE-2000热释光读出器对样品进行分析。室内、室外天然γ辐射水平剂量率均值分别为10.4×10^-8Gy/h和9.6×10^-8Gy/h,天然γ辐射水平所致公众年有效剂量均值为627.9μSv/a。嘉兴市天然γ辐射处于正常本底辐射水平。Objective to understand the current situation and change trend of natural γ radiation level dose rate in Jiaxing City, evaluate the public exposure dose,and provide basis and experience for comprehensive radiation forecasting and early warning.The cumulative monitoring method was used to monitor 136 sites in the whole city by using LiF(Mg, Cu, P) thermoluminescence dosimeter,and the samples were analyzed by RE-2000 thermoluminescence reader.The average dose rates of indoor and outdoor natural γ radiation levels were 10.4×10^-8 Gy/h and 9.6×10^-8 Gy/h respectively.The average annual effective dose of the public caused by natural γ radiation level was 627.9μSv/a.The natural γ radiation of Jiaxing City is in the normal background radiation level.

关 键 词：嘉兴市 天然γ辐射水平 公众照射剂量 

分 类 号：X830[环境科学与工程—环境工程]