摘要
It has been claimed that the half-life of radioactive nuclides embedded in metals may be significantly affected by the screening of quasi-free electrons provided by the metals,especially at the cryogenic temperature.We determine the α-decay half-life values of 210 po in high purity metallic bismuth at 4.2 K and 293 K.The results show that the α-decay half-life of 210Po at T =4.2 K is about (24 ±8)% shorter than that at room temperature.
作者
董克君
姜山
何明
何贤文
阮向东
管永精
林德雨
袁坚
武绍勇
DONG Ke-Jun;JIANG Shan;HE Ming;HE Xian-Wen;RUAN Xiang-Dong;GUAN Yong-Jing;LIN De-Yu;YUAN Jian;WU Shao-Yong(China Institute of Atomic Energy,P.O.Box 275(50),Beijing 102413;College of Physics Science and Technology,Guangxi University,Nanning 530004)
基金
Supported by the National Natural Science Foundation of China under Grant No 10875177.