摘要
基于XTG-2000W型水体放射性实时在线监测系统,通过高纯锗探测器对水体γ射线能谱的测量间接计算水体中总α/β放射性活度。对成都郫县河水、某品牌矿泉水、东风渠水和成都理工大学内自来水进行了伽马能谱测量并计算对应水体的总α/β放射性活度,比较3种水样的计算结果与外检结果得出α比活度拟合值与测量值间的相对误差为8.65%、9.49%、121.87%,β比活度拟合值与测量值间的相对误差为6.73%、27.95%、16.96%,证明了该方法的可行性。
This article indirectly assessed the grossα/βactivity by using the HPGe detector to measure aγ-ray energy spectrum based on the XTG-2000W type drinking water radioactivity detecting system.Based on this method,a grossα/βtest was carried out on waters from Pixian reservoir,mineral water,Dongfeng canal and CDUT.Compare the calculation values of these three water samples with test results,the relative deviation ofαandβare 8.65%,9.49%,121.87%and 6.73%,27.95%,16.96%,respectively,which proved the applicability of this method.
作者
孙高山
葛良全
管弦
曾国强
徐立鹏
郭生良
罗明涛
SUN Gao-shan;GE LIANG-quan;GUAN Xian;ZENG Guo-qiang;XU Li-peng;GUO Sheng-liang;LUO Ming-tao(Chengdu University of Technology,Chengdu 610059,China;Sichuan Management & Monitering Center Station of Radioactive Environment,Chengdu 611130,China;Newray Technology Ltd.Chengdu 610051,China)
出处
《四川环境》
2019年第1期120-124,共5页
Sichuan Environment
基金
国家自然科学基金(41774147)
国家重点研发计划项目(2017YFC0602100)
