A Newly Constructed Plunger for Nuclear Lifetime Measurements in CIAE  

作　　者：HE Chuang-ye,WU Xiao-guang,ZHU Li-hua,PAN Bo,WANG Lie-lin,ZHENG Yun,HAO Xin,YAO Shun-he,YU Bei-bei,LI Guang-sheng 

出　　处：《Annual Report of China Institute of Atomic Energy》2009年第1期162-164,共3页中国原子能科学研究院年报（英文版）

基　　金：Supported by Major State Basic Research Development Program(2007CB815000);National Natural Science Foundation of China(10927507,10675171,10105015,10175070,10375092,10575133)

摘　　要：Lifetime measurement of the nuclear excited states provides a important insight into the nuclear structure study.Many different methods have been devised for different lifetime.Plunger is a apparatusLifetime measurement of the nuclear excited states provides a important insight into the nuclear structure study. Many different methods have been devised for different lifetime. Plunger is a apparatus to measure the lifetime between 10^-9 s and 10^-12 S. The apparatus （Fig. 1） which utilizes the recoil distance method （RDM） has been constructed in CIAE. In this method the recoil nuclei, produced by the beam in a very thin target, are flying in alterable distances and finally stopped in a sheet of heavy material.

关 键 词：原子能科学研究院 寿命测量 反冲距离法 柱塞 生命周期 核结构 激发态 经设计 

分 类 号：O571.22[理学—粒子物理与原子核物理] G311[理学—物理]