γ谱无源效率刻度法测量IAEA国际比对样品  

Analyze the IAEA International Intercomparison Samples with the γ Spectrometry Sourceless Efficiency Calibration Method

作　　者：周程 蒋若澄 胡建伟 周健 刘晓平 陈辛 ZHOU Cheng JIANG Ruo -cheng HU Jian -wei ZHOU Jian LIU Xiao -ping CHEN Xin(Nuclear and radiation safety supervision Bureau of Jiangsu Province, Nmljing 210019, China Jiangsu Radiation Environmental Protection Consultation Center, Nanjing 210019, China Radiation Environment Monitoring and Management Center of Lianyungang, Lianyungang Jiangsu 222047)

机构地区：[1]江苏省核与辐射安全监督管理局,南京210019 [2]江苏省辐射环境保护咨询中心,南京210019 [3]连云港辐射环境监测管理站,江苏连云港222047

出　　处：《核电子学与探测技术》2017年第2期142-146,共5页Nuclear Electronics & Detection Technology

基　　金：江苏省环保科研基金(2015066)资助

摘　　要：利用γ谱无源效率刻度法对IAEA在2010年-2012年间提供的6个水样、3个土壤样和1个生物灰中的^(241)Am、^(133)Ba、^(60)Co、^(134)Cs、^(137)Cs、^(152)Eu、^(228)Ac、^(40)K、^(208)Tl、^(226)Ra、^(214)Bi、^(212)Pb、^(214)Pb、^(238)U等核素进行了活度浓度分析。测试结果与IAEA的参考值相比,报送的41个数据总体接受率为100%。通过比对结果分析,验证了γ谱无源效率刻度方法的实用性和可靠性,为该方法在环境辐射监测中的广泛应用提供了依据。By using γ spectrometer sourceless efficiency calibration method, we analyzed the activity concentra- tion of 24, Am 133Ba.,60Co. 134 Cs. 137Cs. 152Eu. 228Ac,40 K.208T1, 226Ra ,214 Bi .212 Pb.214pb,238U in six water samples, three soil samples and one biological ash sample provided by IAEA in 2010 -2012. Compared with the IAEA reference value, the overall acceptance rate of the 41 data submitted by our laboratory is 100%. Based on the analysis of the comparison results, we validated the practicability and reliability of spectrometer sourceless efficiency calibration method, and provided the basis for the wide application of this method in Environmental Radiation Measurement.

关 键 词：Γ谱 环境样品 无源效率刻度 国际比对 

分 类 号：TL817[核科学技术—核技术及应用]