平均原子模型中Au元素自电离速率的计算
Calculation of Auger rates of Au in average atom model
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摘要: 为了得到用于平均原子模型中的自电离速率,采用准相对论组态平均的方法系统计算了Au的不同电离度、不同自电离态的自电离速率,计算时使用的波函数由Cowan程序得到;通过组态到组态的自电离速率得到了nl层次的单电子自电离速率(初态平均、末态平均);在此基础上计算出了n层次的单电子自电离速率,这些数据可用于平均原子模型中自电离及其逆过程的计算。为了验证计算出的数据是否可靠,用细致能级层次的程序计算了部分数据点。通过比较和分析认为,除了少量高l的数据点计算得不够准确之外,当前的数据较为可靠,并用其它程序的计算结果对不准确的数据进行了替换。
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关键词:
- 平均原子模型 /
- 自电离速率 /
- 准相对论组态平均 /
- 等离子体中的原子过程
Abstract: Auger rates for Au were calculated by quasi-relativistic configuration-averaged method, with the wave functions obtained by Cowan’s codes. Firstly, “configuration-to-configuration Auger rates” for He-like to Dy-like gold were calculated. Then “Auger rates for single electron” for average atom model (AAM) with and without l-splitting were both obtained by averaging the configuration-to-configuration rates. Our data were evaluated through the comparison with other results calculated from more detailed codes, including Cowan’s codes, flexible atomic code and fully relativistic codes. The evaluation shows that most of our data are reliable except those with high orbital quantum number l, which were replaced with valid data obtained by other codes.
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