Theoretical Studies of Reactive and Inelastic Processes Involving Highly Charged Ions

涉及高电荷离子的反应和非弹性过程的理论研究

• 批准号: 63044021
• 负责人: ISHIHARA Takeshi
• 金额: $ 4.48万
• 依托单位: University of Tsukuba
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Overseas Scientific Survey.
• 财政年份: 1988
• 资助国家: 日本
• 起止时间: 1988 至 1989
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-63044021/
• 关键词: Highly charged ions; atomic collisions; ionization; excitation; charge transfer; Thomas peak

The quantum-mechanical broadening of classical Thomas peaks in various fast second-order particle transfer processes is considered in observable velocity distributions of recoil particles. The relativistic, two-center, coupled-channel treatment of atomic collisions between high-Z ions has been extended to include pseudostates and reasonable estimates of the cross sections for ionization and K-vacancy production are obtained. Correlation effects in the excitation processes of two-electron atoms are investigated by means of the hyperspherical coordinate method. Charge transfer processes of multi-electron systems are studied by a close-coupling method based on a molecular orbitals attached by electron-translation factors. The continuum multiple-scattering method is applied to the scattering of relatively large molecules. A network connection between Japanese and US computers has been established for the calculations of charge transfer processes.

在可观测到的反冲粒子速度分布中，考虑了各种快速二阶粒子转移过程中经典托马斯峰的量子力学展宽。高Z离子之间原子碰撞的相对论、双中心、耦合通道处理已被扩展到包括赝态，并获得了电离和K空位产生截面的合理估计。用超球坐标方法研究了双电子原子激发过程中的关联效应。用密耦方法研究了多电子体系的电荷转移过程。连续多次散射方法适用于相对较大分子的散射。为了计算电荷转移过程，在日本和美国计算机之间建立了网络连接。

项目成果

K.Kobayashi: "Muon transfer between hydrogen ions at low energies" Muon Catalyzed Fusion. 2. 191-197 (1988)

K.Kobayashi：“低能氢离子之间的 μ 子转移”μ 子催化聚变。

N.Toshima: "Coupledーchannel theory of excitation and charge transfer in relativistic atomic collisions" Physical Review A. 38. 2305-2316 (1988)

N. Toshima：“相对论原子碰撞中激发和电荷转移的耦合通道理论”物理评论 A. 38. 2305-2316 (1988)

Michio Matsuzawa: "Electronーimpact excitation of atoms in highーlying doubly excited states:Single electron excitation between double excited states" Physical Review A. (1990)

松泽道雄：“高位双激发态原子的电子碰撞激发：双激发态之间的单电子激发”物理评论 A. (1990)

J. H. McGuire: "Recoil distributions in particle transfer" Physical Review Letters. 62. 2933-2926 (1989)

J. H. McGuire：“粒子传输中的反冲分布”物理评论快报。

Noriyuki Simakura: "Electron capture cross sections in Be^<3+>+H collisions using the travellingーmolecularーorbital method" Journal of Physics B. 21. 2485-2496 (1988)

Noriyuki Simakura：“使用行进－分子－轨道方法的 Be^<3+>+H 碰撞中的电子捕获截面”《物理学杂志》B. 21. 2485-2496 (1988)