State-selective Electron Capture for keV He^2＋ Ions on Helium Collisions Studied by RIMS

• 作者: Zhu Xiaolong Ma Xinwen Li Bin Liu Huiping Chen Lanfang Zhang Shaofeng Qian Dongbin Feng Wentian Cao Shiping Sha Sha Zhang Dacheng
• 来源期刊: 近代物理研究所和兰州重离子加速器实验室年报：英文版
• 学科: 物理学
• 关键词: 电子俘获过程 离子碰撞 轮辋 能量守恒定律 氦 原子碰撞 物理研究所 ECR源
• 年，卷（期）: 2005,（1）
• 页码范围: 105
• 页数: 1页
• 分类号: O562.5

摘要

<正>We constructed a COLTRIMS on the ECR source atomic beam line at the Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou. By using the recoil ion momentum imaging technique, we investigated the single electron capture process of 7. 5 keV/u He2+ on helium collisions. From momentum and energy conservation laws, one can obtain longitudinal momentum of the recoil ion P//R as follows