WHO-IRC和IAEA-AQCS国际比对样品的γ谱分析

Gamma Spectrum Analysis of WHOIRC and IAEAAQCSlnternational lntercomparison Samples

报道了本实验室１９９１－１９９４年间参加ＷＨＯ－ＩＲＣ和ＩＡＥＡ－ＡＱＣＳ组织的环境样品放射性测量国际比对工作．用２台ＨＰＧｅγ谱仪，相对方法和效率曲线方法测量了土壤样品、沉积物样品和水介质样品；用自吸收校正方法测量了生物样品．对ＷＨＯ－ＩＲＣＮｏ．５７Ｖｉ３００号样品，在２８个报出数据的实验室中，本实验室测量值与推荐值的平均相对偏差最小，为３．０４％．

This paper reports the WHOIRC and IAEAAQCS international intercomparison that author's laboratory had participated during 1991-1994.The samples were measured with 2 HPGe γ spectrometers.The soil,sediment and water samples were measured by relative method and efficiency curve method.The biological samples were measured by selfabsorption correction method.The relative deviation of measured value from recommended value were analyzed for WHOIRC No.57Vi300 sample.It has been given that the average deviation of the results is minimum,i.e.304%.