田湾核电站附近某校环境辐射状况调查  

作　　者：陈辛 黄倩文 张晓文[2] 

机构地区：[1]连云港环境辐射监测站,连云港222000 [2]南华大学<环境与安全工程学院>,衡阳421001

出　　处：《科技视界》2020年第17期266-268,共3页Science & Technology Vision

摘　　要：核电在当今世界发展迅速,核电站正常生产时对周围环境产生的辐射让一些人产生了担忧.本文选取距田湾核电站27公里的某校园作为调查对象,采用半导体探测器和塑料闪烁体探测器对校园室内氡浓度和室外γ剂量率进行了测量与分析.结果表明:室内氡浓度与房龄有关,与建筑的类型、湿度、温度无关,房龄越大室内氡浓度越低;γ剂量率水平受地面材质和周围建筑物分布影响较大,石板砖、水泥地面周围γ剂量率水平较高,橡胶和草皮地面γ剂量率水平较低,建筑物越密集γ剂量率水平越高;校园室内氡浓度和γ剂量率水平都低于国家安全标准.Nuclear power has been developing rapidly in the world,and the radiation on the surrounding environment which produced by nuclear power plant during normal production has raised some concerns.This article selects a school 27 km far away from the tianwan nuclear power station as the research object,indoor radon concentration and outdoor gamma dose rates of the campus were measured and analyzed by using semiconductor detector and plastic scintillator detector.The results show that the indoor radon concentration is associated with the year of the buildings,and has nothing to do with building type,humidity and temperature.The older the buildings are,the lower the indoor radon concentration.Gamma dose rate levels are greatly influenced by the ground material distribution and the surrounding buildings:the gamma dose rate level of granite or cement covered ground are higher than those covered with rubber or grass;and,the longer of the destiny of the buildings are,the higher of the gamma dose rate level are.The indoor radon concentration and radiation dose rate level in campus are below the national safety standards.

关 键 词：环境辐射 室内氡 Γ剂量率 

分 类 号：R144[医药卫生—公共卫生与预防医学]