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| 碱金属团簇Na2在重离子作用下的离化 | |
| 引用本文： | 魏宝仁,张丰收,马新文,王锋. 碱金属团簇Na2在重离子作用下的离化[J]. 原子核物理评论, 2002, 19(2): 157-160. DOI: 10.11804/NuclPhysRev.19.02.157 |
| 作者姓名： | 魏宝仁 张丰收 马新文 王锋 |
| 作者单位： | 1中国科学院近代物理研究所; 2清华大学物理系原子分子纳米科学中心3 兰州重离子加速器国家实验室原子核理论中心; 4 中国高等科学技术中心; |
| 基金项目： | 中国科学院百人计划资助项目(2001-2003) |
| 摘 要： | 在时间相关的局域密度近似理论框架下研究了重离子Ar8+ 和碱金属团簇Na2 随时间演化的相互作用 .给出了电子系统的总能量 ,产生Na2 的各种电荷态的几率和Na2 价电子的平均逃逸数等物理量随时间的演化 ,进而得到了Na2 的离化几率 .在快重离子与团簇作用中 ,可以得到低激发态的团簇离子. Based on the Time Dependent Local Density Approximation(TDLDA), the processes of excitation of sodium clusters by highly charged Ar 8+ions are simulated. The time-dependent probabilities of escaped electrons are obtained, furthermore, the ionization probabilities of the Na 2clusters are deduced.In fast ion-cluster collisions, Na 2cluster ions can be produced with minimum or even no excitation of the cluster itself |
| 关 键 词： | 团簇 重离子 离化几率 时间相关的局域密度近似 |
| 文章编号： | 1007-4627(2002)02-0157-04 |
| 收稿时间： | 1900-01-01 |
| 修稿时间： | 2002-03-11 |
Ionization of Sodium Dimer Na2 by Heavy Ion |
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| Affiliation: | (1 Institute of Modern Physics; Chinese Academy of Sciences; Lanzhou 730000; China; 2 Center of Theoretical Nuclear Physics; National Laboratory of Heavy Ion Acc; |
| Abstract: | Based on the Time Dependent Local Density Approximation(TDLDA), the processes of excitation of sodium clusters by highly charged Ar 8+ions are simulated. The time-dependent probabilities of escaped electrons are obtained, furthermore, the ionization probabilities of the Na 2clusters are deduced.In fast ion-cluster collisions, Na 2cluster ions can be produced with minimum or even no excitation of the cluster itself |
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