高电荷态离子的寿命测量在核天体物理与核结构研究方面都起着重要的作用，是核物理研究的一个重要方向。本课题涉及内容尚未在国内开展，我们计划利用大科学装置HIRFL-CSR产生和储存高电荷态离子，在储存环内直接观察测量高电荷态离子的衰变寿命。课题的顺利执行，能提高相关探测设备的研制能力，为十二五装置HIAF的建造积累技术经验。在物理上，通过对112Sn区域高电荷态离子衰变寿命的测量，可以检验类氢、类氦高电荷态离子EC衰变率反常的相关衰变理论。同时，也能为核天体物理的计算提供重要的数据。

The lifetimes of highly charged ions play an important role in nuclear astrophysics and nuclear structure, which are one of important focus of studies in nuclear physics. The lifetimes of highly charged ions will be measured with storage ring HIRFL-CSR for the first time in China. The highly charged ions are stored and decay directly in storage ring. This project will improve the development of detectors and help to design next generation storage ring HIAF. A theory used to explain the difference of lifetimes between hydrogen-like and helium-like ions can be checked by measuring the lifetimes of highly charged ions around 112Sn. The lifetimes also can be used to study astrophysics.