中国医学装备Issue(5)：58-61,4.DOI:10.3969/J.ISSN.1672-8270.2015.05.018
γ能谱分析中无源效率刻度技术在饮用水放射性监测中的应用
Application of source less calibration method for analysis of radioactivity in water sample by gamma spectrometry
摘要
Abstract
Objective: To test the accuracy of method of efficiency calibration by source less calibration. Methods:The energy spectrum in the same HPGe gamma, were calibrated by using the source less calibration and actual calibration technique for the same specification of the water samples, the efficiency value of relative deviation was compared. Results:Two efficiency calibration curve used by source less calibration and actual calibration were generated, the maximum relative deviation of the two methods is less than 10%, for most of the points the values are less than 3%. Conclusion:For the water samples, the efficiency obtained by source less calibration are in good agreement with the actual calibration data, so the efficiency calibration technique of source less calibration can be applied in various kinds of water samples for gamma spectrometry analysis.关键词
γ能谱/无源效率刻度/水样品/放射性Key words
Gamma spectrometry/Source less calibration/Water sample/Radioactivity分类
医药卫生引用本文复制引用
张京,张庆,拓飞,周强,徐翠华,苏旭..γ能谱分析中无源效率刻度技术在饮用水放射性监测中的应用[J].中国医学装备,2015,(5):58-61,4.基金项目
国家科技支撑计划(2013BAK03B05)“核事故健康风险评估与卫生应急处置技术研究” （2013BAK03B05）
