| Resonance Excitation Rate Coefficient of Ni-Like Tantalum |
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| 作者姓名： | 沈天明 陈重阳 王炎森 顾明峰 |
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| 作者单位： | [1]Shanghai EBIT Lab, Modern Physics Institute, Fhdan University, Shanghai 200433 [2]The Key Lab of Applied Ion Beam Physics （Ministry of Education）, Fudan University, Shanghai. 200433 [3]Department of Physics, Stanford University, Stanford, CA 94305, USA |
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| 基金项目： | Supported by the National Natural Science Foundation of China under Grant Nos 10574029 and No 10434050, the Chinese Association of Atomic and Molecular Data and National High-Tech ICF Committee in China. |
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| 摘 要： | 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.
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| 关 键 词： | 镍 钽 共振 电子碰撞 |
| 收稿时间： | 2006-12-21 |
| 修稿时间： | 2006-12-21 |
Resonance Excitation Rate Coefficient of Ni-Like Tantalum |
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| SHEN Tian-Ming,CHEN Chong-Yang,WANG Yan-Sen,GU Ming-Feng.Resonance Excitation Rate Coefficient of Ni-Like Tantalum[J].Chinese Physics Letters,2007,24(4):925-928. |
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| Authors: | SHEN Tian-Ming CHEN Chong-Yang WANG Yan-Sen GU Ming-Feng |
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| Affiliation: | 1 Shanghai EBIT Lab, Modern Physics Institute, Fudan University, Shanghai 200433; 2 The Key Lab of Applied Ion Beam Physics (Ministry of Education |
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| Abstract: | The ab initio calculations of electron-impact resonant excitation rate coefficients from the ground level to 54 fine-structure levels of 3d94l(l=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 3l17n'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. |
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| Keywords: | 34 80 Kw |
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