Dissociation and Coulomb Explosion of H2^4＋ in S^q＋ ＋H2 Collisions

• 作者: WangZhenglin MaXinwen
• 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: 氢气分子离子 碰撞散射 能量分布 硫离子 库仑撞击
• 年，卷（期）: 2003,（1）
• 页码范围: 96-97
• 页数: 2页
• 分类号: O561.5

摘要

We have investigated fragment emission from molecularions in H2^r+ collisions between S^q+ and H2 with incident energies of 12.5, 15.625, 18.75, 21.875, 25, 28.125, 31.25, 34.375, 37.5, 40.625, and 43.75 keV/u, respectively. The energy distributions of the fragments are measured by time-of-flight techniques. The experimental results show evidences for molecular Coulomb explosion and dissociation. A program[1] is estab-lished based on the Monte Carlo technique to simulate the time-of-flight spectrum of fragment ions with different initialkinetic energy in ion-Molecule collisions. Simulations are done for S^2+ +H2 collisions and compared with experimental results.