论文部分内容阅读
用两套γ谱仪精确测量了注入到天然铍和天然金中的7Be发生电子俘获的半衰期.测得7Be在天然铍中半衰期为53.275(25)d,在天然Au中为53.270(19)d.该结果还表明,在这两种材料中7Be半衰期的相对变化小于0.12%.
The half-life of 7Be in natural beryllium was 53.275 (25) days, and in native Au 53.270 (19) d was measured accurately using two sets of gamma spectrometers The results also show that the relative change in 7Be half-life in these two materials is less than 0.12%.