摘要
使用氡子体标准源对氡子体高纯锗γ能谱测量的探测效率进行了实验测量,并用蒙特进行理论模拟。结果表明,当滤膜放置谱仪表面时,氡子体^(214)Pb 352 keV全能峰探测效率实验值为10.09%,^(214)Bi 609keV的全能峰探测效率实验值为4.22%,可用于氡子体浓度高纯锗γ能谱测量。
The detection efficiency of the radon-donor high-purity germaniumγ-energy spectrum measurement using radon progeny standard source was experimentally measured and simulated by Monte-Carlo.The results show that when the filter is placed on the surface of the spectrometer,the detection efficiency of radon daughter body214Pb352keV is10.09%,and that of214Bi609keV is4.22%.It can be used for radon donor concentration high purity germaniumγenergy spectrum measurement.
作者
何正忠
吕丽丹
周文韬
徐继圆
He Zhengzhong;Lu Lidan;Zhou Wentao;Xu Jiyuan(College of Nuclear Science and Technology, Hengyang Hu,nan 421001, China)
出处
《环境与发展》
2018年第2期125-126,共2页
Environment & Development
基金
湖南省教育厅科研项目"γ谱仪测量高氡浓度研究"
编号:15C1177
深圳市人居环境委员会项目"深圳市环境氡浓度水平及所致公众有效剂量分布"编号:2017-01-0298-A1
南华大学研究生科研创新项目
项目编号:2016XCX02
关键词
高纯锗
氡子体
探测效率
High purity germanium
Radon progeny
Detection efficiency
