Dissociation and Coulomb Explosion of in S^(q+)+H_2 Collisions

作     者：Wang Zhenglin and Ma Xinwen 

出 版 物：《近代物理研究所和兰州重离子加速器实验室年报：英文版》 (IMP & HIRFL Annual Report)

年 卷 期：2003年第1期

页      面：96-97页

学科分类：07[理学] 070202[理学-粒子物理与原子核物理] 0702[理学-物理学] 

主　　题：氢气分子离子 碰撞散射 能量分布 硫离子 库仑撞击 

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.