论文部分内容阅读
1982年中国计量科学院组织了国内~(152)EUγ射线发射率的测量比对。利用1979年国际比对的~(152)Eu标准源的γ射线发射率值刻度130 cm~3Ge(Li)探测器,然后测量~(22)Na等7个刻度源的九条γ射线发射率,以便和来自英国放化中心以及中国计量科学院用基准方法测量的结果相比较,反过来验证~(152)Eu标准源的可靠性。
In 1982, China Academy of Metrology organized and measured the comparative measurement of ~ (152) EUγ-ray emissivity. The gamma ray emissivity values of 130 cm ~ 3Ge (Li) detector of ~ (152) Eu standard source in 1979 were compared. Nine γ - ray emissivities of seven calibration sources such as ~ (22) Na were measured. In order to verify the reliability of ~ (152) Eu standard sources in turn, in comparison with the results obtained from the British Radiation Center and the Chinese Academy of Metrology using the baseline method.