桂阳潘家庄地区地表γ辐射空气吸收剂量率估算与放射性环境评价  

Estimation of Airborne Absorbed Dose Rate of Surface Gamma Radiation and Radioactive Environment Assessment in Panjiazhuang Area of Guiyang County

作　　者：孟繁星 刘俊峰 韦光景 郭军 黄乐清 Meng Fanxing;Liu Junfeng;Wei Guangjing;Guo Jun;Huang Leqing(Hunan Institute of Nuclear Geology,Changsha Hunan 410007,China;Hunan Institute of Geophysics and Geochemistry,Changsha Hunan 410014,China;Hunan Institute of Geological Survey,Changsha Hunan 410014,China)

机构地区：[1]湖南省核地质调查所,湖南长沙410007 [2]湖南省地球物理地球化学调查所,湖南长沙410014 [3]湖南省地质调查所,湖南长沙410014

出　　处：《工程地球物理学报》2024年第2期238-246,共9页Chinese Journal of Engineering Geophysics

基　　金：湖南省地质院科研基金(编号:HNGSTP202207)。

摘　　要：桂阳潘家庄地区花岗岩大面积出露,导致土壤中的放射性核素活度浓度普遍偏高。较高的γ辐射空气吸收剂量是否存在风险成为人们关心的问题。本文通过已有γ伽玛能谱测量数据估算出地表γ辐射空气吸收剂量率,根据地表γ辐射空气吸收剂量率与人居环境适宜性的关系,从而进行人居环境适宜性分区。得出γ辐射安全区197.90 km^(2),占全区面积的98.95%;风险区1.42 km^(2),占0.71%;管制区仅0.68 km^(2);表明潘家庄地区天然放射性人居环境优良。本文可为该地区人居环境选址、合理、有效地利用潘家庄地区的国土资源提供支持,也可对加速潘家庄地区乡村健康与可持续发展提供必要的参考。The large area of granite exposed in Panjiazhuang area of Guiyang,results in a generally high concentration of radionuclide activity in soil.The risk of higher airborne absorbed doses of gamma radiation has become a hot issue.In this paper,the air absorbed dose rate of surface gamma radiation is estimated based on the existing gamma spectrum measurement data.According to the relationship between the air absorbed dose rate of surface gamma radiation and the suitability of human settlements,the suitability zoning of human settlements is carried out.Within the controlled area of 0.68 km^(2),the safe zone of gamma radiation measures 197.90 km^(2),accounting for 98.95% of the total area.The risk zone is 1.42 km^(2),accounting for 0.71%,which shows that the natural radioactive human settlement environment in Panjiazhuang area is good.This paper can provide support for the location of human settlements,reasonable and effective use of land resources in Panjiazhuang area,and also provide necessary reference for accelerating the health and sustainable development of rural areas in Panjiazhuang area.

关 键 词：桂阳潘家庄 Γ能谱 放射性水平 空气吸收剂量率 人居环境安全 

分 类 号：P631.6[天文地球—地质矿产勘探]