4πβ－γ符合法测定^（99）Mo溶液比活度

THE MEASUREMENTS OF SOLUTION SPECIFIC ACTIVITY IN ￣(99)Mo WITH 4πβ-γ COINCIDENCE COUNTING

用４πβ－γ符合参数法测定￣（９９）Ｍｏ溶液比活度。最终结果总不确度为０．５％（９９．７％置信水平）。

Specific activity of ￣(99)Mo solution is measured with 4πβ-γ coincidence parameter method. Theunceriainty of final results obtained is 0.5%for confidence level of 99.7%。