山西省某地区放射性辐射水平评价  

Evaluation of Radioactive Radiation Level in Certain Area of Linxian County,Shanxi Province

作　　者：张浩宇 张新军[1] 丁江燕 ZHANG Hao-yu;ZHANG Xin-jun;DING Jiang-yan(School of Mining Engineering,Taiyuan University of Technology,Taiyuan 030024,China)

机构地区：[1]太原理工大学矿业工程学院,太原030024

出　　处：《核电子学与探测技术》2020年第6期881-886,共6页Nuclear Electronics & Detection Technology

基　　金：山西省国土资源厅地质勘查基金(SXZDF20170820)资助。

摘　　要：为了解山西省某地区放射性辐射环境情况,采用地表γ辐射测量的方法,检测了该地区土壤天然放射性核素种类、放射性特征和分布规律及地表放射性γ辐射剂量水平。通过对地表γ能谱数据的处理,了解到该地区检测区土壤中核素^(238)U和^(40)K的放射性比活度偏高,而^(232)Th含量偏低。经统计计算地表γ辐射剂量率平均值为165.5n Gy/h,γ辐射对居民产生的年平均有效剂量为0.81mSv,辐射水平基本都处于标准范围内,仍然为正常辐射水平地区。In order to understand the radioactive radiation environment in certain area,the species,characteristics and distribution of natural radionuclides and the level of surface radioactive gamma radiation dose in Zijinshan area were detected by surface gamma radiation measurement.Through the processing of the surface γ energy spectrum data,it is learned that the specific activities of the nuclides^(238)U and ^(40)K in the soil in the detection certain area are relatively high,while the content of ^(232)Th is relatively low.The calculated average surface gamma radiation dose rate is 165.5 nGy/h,and the annual average effective dose of gamma radiation to residents is 0.81 mSv.The radiation level is basically within the standard range and it is still a normal radiation level area.

关 键 词：土壤放射性核素 地表γ辐射剂量率 

分 类 号：P631[天文地球—地质矿产勘探]