γ能谱法在环境空气^(210)Pb测量中的应用  

Application of γ-ray Spectrometry Measurement of ^(210)Pb in Ambient Air

作　　者：史蕾 郭学文 李金璐 常明杰 SHI Lei;GUO Xuewen;LI Jinlu;CHANG Mingjie(Shandong Nuclear and Radiation Safety Monitoring Center,Jinan Shandong 250117)

机构地区：[1]山东省核与辐射安全监测中心,山东济南250117

出　　处：《中国科技纵横》2020年第23期50-51,共2页China Science & Technology Overview

摘　　要：公众对生态环境的关注度越来越高,特别是福岛核事故以后,放射性核素引发了公众对于环境空气中放射性核素的极大关注.^(210)Pb是天然放射性核素,是铀系衰变链上的子体,自地球诞生之初一直存在于环境空气中.本文对济南市2018—2020年空气中的^(210)Pb进行了分析对比,用高纯锗γ谱仪对气溶胶样品进行分析,可以看出2018—2020年济南市的^(210)Pb活度浓度为1.13mBq/m^(3),处于我国天然放射性本底涨落范围内.With the increasing public concern for the ecological environment,the radionuclide has aroused the public concern for the environmental radionuclide in the air after the Fukushima nuclear accident.^(210)Pb is a natural radionuclide,a decay daughter of the Uranium decay chain that has existed in ambient air since the birth of the earth.In this paper;^(210)Pb in the air of Jinan from 2018—2020 was analyzed and compared,and the aerosol samples were analyzed by High Purity Germanium Spectrometer.The concentration of ^(210)Pb in the air of Jinan from 2018—2020 was 1.13 mBq/m^(3),it is in the range of fluctuation of natural radioactive background in China.

关 键 词：环境空气 高纯锗Γ谱仪 铅-210 

分 类 号：TL817[核科学技术—核技术及应用]