4πγ计数法测量~(166)Ho~m放射性溶液比活度
Specific Activity Measurement of~(166)Ho~m Solution by 4πγ Counting Method
-
摘要: 描述了用于放射性活度测量的4πγNaI(Tl)计数法的测量原理。用单能γ源刻度得到了探测器效率曲线。用能级效率法编制了计算总效率的程序。对166Hom计算的总探测效率达到了0.9967。实验测量的166Hom溶液放射性比活度的相对合成标准不确定度为0.4%。Abstract: The paper describes the 4πγ counting method in radioactivity measurement. The efficiency function is calibrated by using single energy γ sources. A computer program calculating the total effciency is written, and the calculated166Hom effciency is 0.996 7. The relative combined standard uncertainty of the specific activity is 0.4% for the166Hom solution.
下载: