论文部分内容阅读
本文叙述了用4πβ-γ符合方法测量~(99)Mo-~(99m)Tc平衡体的绝对衰变率。着重讨论了~(99m)Tc的影响,给出了合理的实验条件和实验数据。用4πβ正比管测量~(99)Mo的半衰期为66.0±0.2小时。
This paper describes the determination of the absolute decay rate of the ~ (99) Mo- ~ (99m) Tc equilibrium using 4πβ-γ coincidence method. The effect of ~ (99m) Tc is discussed, and the reasonable experimental conditions and experimental data are given. The half-life of ~ (99) Mo was 66.0 ± 0.2 hours measured with a 4πβ proportional tube.