第十五届全国原子与分子物理学术会议:非局域热动平衡等离子体K壳层电离平衡模型 |
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引用本文: | 蒲昱东,靳奉涛,张继彦,丁永坤.第十五届全国原子与分子物理学术会议:非局域热动平衡等离子体K壳层电离平衡模型[J].原子与分子物理学报,2010,27(2). |
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作者姓名: | 蒲昱东 靳奉涛 张继彦 丁永坤 |
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作者单位: | 清华大学工程物理系,国防科学技术大学物理系,激光聚变研究中心,激光聚变研究中心 |
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基金项目: | 国家重点实验室基金(批准号:9140C6804010805) |
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摘 要: | 发展了针对非局域热动平衡等离子体的K壳层电离平衡模型。模型中详细计算了各原子过程参数,并通过求解速率方程的稳态解得到各电离态的布居分布。在此基础之上,研究了谱线强度比值对等离子体温度、密度的依赖关系。最后,我们根据此模型的计算结果,分析了在神光II装置上获得的内爆靶丸掺Ar发射光谱实验数据,推断出靶丸芯区电子温度随时间的演化过程。
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关 键 词: | 等离子体 非局域热动平衡 电离平衡 内爆 电子温度 |
A model for K-shell ionization balance of Non-LTE plasmas |
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Institution: | National University of Defense Technology,Research Center of Laser Fusion,Research Center of Laser Fusion |
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Abstract: | We have developed a model for calculating K-shell ionic charge-state distribution in Non-LTE plasmas. Spectral line intensity ratios are also calculated as a function of electron density and temperature at typical conditions considered in indirectly driven ICF experiments. As an application of the model, time-resolved x-ray spectroscopy of Ar doping K-shell emission, which has been recorded by streaked x-ray crystal spectrometer in implosion experiments carried out on SG II facility, is analyzed to extract the evolution of core electron temperature. |
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