IAEA国际比对样品的γ谱分析  

Gamma Spectrum Analysis of IAEA International Intercomparison Samples

作　　者：吴云锋[1] 杜金洲[1] 黄德坤[1] 张经[1] 

机构地区：[1]华东师范大学河口海岸学国家重点实验室,上海200062

出　　处：《核化学与放射化学》2009年第3期157-162,共6页Journal of Nuclear and Radiochemistry

基　　金：中国重点基础发展计划资助项目(2006CB400601);上海市浦江人才计划资助项目(06PJ14031);教育部留学回国人员基金资助项目

摘　　要：本实验室使用超低本底HPGeγ谱仪参加了2006年IAEA组织的γ核素放射性活度测量比对。按比对要求测量了土壤和水样中54Mn,60Co,65Zn,134Cs,137Cs,241Am,109Cd,210Pb以及草样中的40K,137Cs。使用无源效率刻度软件LabSOCS对HPGeγ谱仪进行效率刻度,γ谱分析采用Genie2000分析软件。与IAEA的参考值相比,本实验室报出的测量值的总体接受率为89%,不被接受率为0,高于327个参加比对实验室分析结果为64%的总体可接受率,明显低于29%的总体不被接受率。In 2006,the international intercomparision of gamma-radionuclides was conducted by ultra-low background HPGe γ-spectrometer systems in our lab.According to IAEA s rules,activities of 54Mn,60Co,65Zn,134Cs,137Cs,241Am,109Cd,and 210Pb in soil and water,and 40K,137Cs in grass have to be measured.The activies of these radionuclides were performed by Genie 2000 for γ-spectra analysis and by LabSOCS for efficiency calibration.Our laboratory obtained excellent scores with 89% for acceptable and 0 for not acceptable are lower than average 29 %.

关 键 词：环境样品 国际比对 γ核素 无源效率刻度 

分 类 号：TL271.99[核科学技术—核燃料循环与材料]