中文摘要：

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241Am、133Ba、60Co、134Cs、137Cs、152Eu、228Ac、40K、208Tl、226Ra、214Bi、212Pb、214Pb、238U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。

英文摘要：

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.