| 类氦氪离子双电子复合的相对论计算 |
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| 引用本文： | 史习珩,王炎森,陈重阳,顾明峰. 类氦氪离子双电子复合的相对论计算[J]. 中国物理, 2005, 14(5): 959-963 |
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| 作者姓名： | 史习珩 王炎森 陈重阳 顾明峰 |
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| 作者单位： | Institute of Modern Physics, Fudan University, Shanghai 200433, China;Institute of Modern Physics, Fudan University, Shanghai 200433, China;Institute of Modern Physics, Fudan University, Shanghai 200433, China;Physics Department, Stanford University, Stanford, CA 94305, USA |
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| 基金项目： | 国家自然科学基金资助（10434050），国家863高技术惯性约束聚变主题和中国原子分子数据研究联合体资助课题 |
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| 摘 要： | 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。
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| 关 键 词： | 双电子复合；速率系数；级联辐射；n-3标度律 |
| 收稿时间： | 2004-11-18 |
Relativistic calculation of dielectronic recombination for He-like krypton |
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| Shi Xi-Heng,Wang Yan-Sen,Chen Chong-Yang and Gu Ming-Feng. Relativistic calculation of dielectronic recombination for He-like krypton[J]. Chinese Physics, 2005, 14(5): 959-963 |
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| Authors: | Shi Xi-Heng Wang Yan-Sen Chen Chong-Yang Gu Ming-Feng |
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| Affiliation: | Institute of Modern Physics, Fudan University, Shanghai 200433, China; Physics Department, Stanford University, Stanford, CA 94305, USA |
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| Abstract: | Dielectronic recombination cross sections and rate coefficients of He-like Kr are calculated employing the relativistic Flexible Atomic Code (FAC) in which autoionization rates are calculated based on relativistic distorted-wave approximation and the configuration interaction is considered. The Auger and total radiative rates of some strong resonances are listed and compared with the results from MCDF and HULLAC methods. The n-3 scaling law is checked and used to extrapolate rate coefficients. We also show the variation of DR branching ratio with different DR resonances or atomic number Z. The effect of radiative cascades on DR cross sections are studied. |
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| Keywords: | dielectronic recombination rate coefficients radiative cascade n-3 scaling law |
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