| 激光等离子体非平衡X射线发射谱理论研究 |
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| 引用本文： | 裴文兵,常铁强,张钧. 激光等离子体非平衡X射线发射谱理论研究[J]. 物理学报, 1995, 44(11): 1766-1775 |
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| 作者姓名： | 裴文兵 常铁强 张钧 |
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| 作者单位： | 北京应用物理与计算数学研究所,北京100088 |
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| 摘 要： | 在平均离子模型的基础上,发展了一个计算离子组态概率分布的有效方法,称为统计方法.根据激光靶耦合程序模拟给出腔靶等离子体状态条件,研究1.06μm激光金等离子体的非平衡离子组态分布和X射线发射谱特性.得到与实验谱相同的能带范围,并得出在激光等离子体中多电子同时处于激发态的离子组态对X射线发射的贡献不能忽略的结论.关键词：
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| 关 键 词： | X射线发射谱 非平衡 激光等离子体 统计方法 |
| 收稿时间： | 1994-08-30 |
INVESTIGATION ON NON-EQUILIBRIUM X-RAY EMISSION SPECTRA FROM LASER PRODUCED PLASMAS |
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| PEI WEN-BING,CHANG TIE-QIANG and ZHANG JUN. INVESTIGATION ON NON-EQUILIBRIUM X-RAY EMISSION SPECTRA FROM LASER PRODUCED PLASMAS[J]. Acta Physica Sinica, 1995, 44(11): 1766-1775 |
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| Authors: | PEI WEN-BING CHANG TIE-QIANG ZHANG JUN |
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| Abstract: | A statistical method for the ion configuration probability distribution in non-LTE plasmas based on the average-ion model is described. In this method, the ion configuration probabilities are obtained from the average level population probabilities of the ions according to the binomial distribution. The non-equilibrium ion configuration distribution and X-ray spectra emitted from Au plasmas produced by 1.06 μm laser are studied. The calculated X-ray emission spectra are in the same energy band range as the experimental results. We discuss the non-equilibrium characteristics of X-ray emission, and show that the contributions of the multiply excited ions to X-ray emission are important. |
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