Observation of Argon Diatomic Cluster in Argon Gas-jet

• 作者: Ma Xinwen Zhu Xiaolong Feng Wentian Liu Huiping Li Bin Sha Shan Chen Lanfang Cao Shiping Qian Dongbing
• 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: 化学
• 关键词: 氩气 原子簇 反冲离子 喷射 测试实验 入射能量 电场加速 符合测量
• 年，卷（期）: 2004,（1）
• 页码范围: 108
• 页数: 1页
• 分类号: O641.4

摘要

<正>We constructed a one-stage gas-jet for our recoil-ion momentum spectroscopy, and the first testing experiment was performed at the ECR atomic beam-line using argon target. In the experiment, the projectile was He2+ and the incident energy was 38 keV, the recoil ions produced in the collisions were extracted and accelerated by a weak uniform electric field, after passing through a field-free tube, the recoils were detected by a MCP detector. By using coincidence measurements between the recoil ions and the scattered ions, and the time-of-flight spectrum for recoil ions can be obtained. The flight time of recoil ions is proportional to the square root of mass to charge ratio, i.e.