高电荷态氪离子双电子复合过程的理论研究

本文采用相对论的Flexible Atomic Code (FAC) 程序计算类氦Kr34+离子双电子复合的截面及速率系数,其中用n-3标度律对速率系数作了外推.文中我们还讨论了辐射分支比随不同共振峰的变化以及级联辐射的影响.     

高电荷态氪离子双电子复合过程的理论研究

本采用相对论的Flexible Atomic Code(FAC)程序计算类氯Kr^34 离子双电子复合的截面及速率系数，其中用n^-3标度律对速率系数作了外推。中我们还讨论了辐射分支比随不同共振峰的变化以及级联辐射的影响。     

Dielectronic Recombination of Ni-Like Gold Ion Through the Cu-Like 3d^94ln＇l＇ （n＇= 4, 5） Configurations

Ab initio calculations of dielectronic recombination (DR) rate coefficients from the ground state of Ni-like A u ion through the Cu-like 3d^94ln‘l‘ (n‘= 4, 5) configurations have been performed by using a relativistic atomic code FAC with configuration interaction. The DR rate coefficients through the 3d^94l5f5/2 and 3d^94l5f7/2 configurations are evaluated separately. The contributions from resonant and nonresonant radiative stabilizing transitions to the total rate coefficients are distinguished and discussed. The decays to autoionizing levels followed by radiative cascades are included in the calculation.     

Resonance Excitation Rate Coefficient of Ni-Like Tantalum

The ab initio calculations of electron-impact resonant excitation rate coefficients from the ground level to 54 fine-structure levels of 3d94l （1 = s, p, d, f） configurations of Ni-like tantalum ion are performed by using a fully relativistic distorted-wave approximation. The configuration-interaction effects are taken into account. The decays to autoionizing levels possibly followed by autoionization cascades are also included in the calculation. The contributions from doubly-excited intermediate states of Cu-like 31^17n′l′n′l″ （n′ = 4, 5; n″ = 5 - 15） are calculated explicitly, and the contributions from high Rydberg states （n″〉 15） are taken into account by using n-3 scaling law. The present results should be more accurate than the existent calculations.     

类氦氪离子双电子复合的相对论计算

本文采用相对论性的Flexible Atomic Code (FAC)程序计算类氦氪离子的双电子复合截面及速率系数。其中自电离速率的计算采用相对论扭曲波近似，并考虑了组态相互作用的影响。文中还将所得的自电离和总辐射速率与采用MCDF和HULLAC计算得到的结果作了比较。我们检验了n-3标度律的有效性并用它对速率系数做了外推。文中还讨论了辐射分支比随不同共振峰和原子序数的变化以及级联辐射的影响。