高温稠密铬等离子体类氦kα线漂移的诊断  

Spectral line shift of He-like chromium in hot and dense plasmas

作　　者：胡峰[1,2] 杨家敏[1] 王传珂[1,2] 张继彦[1] 蒋刚[2] 

机构地区：[1]中国工程物理研究院激光聚变研究中心,绵阳621900 [2]四川大学原子与分子物理研究所,成都610065

出　　处：《核聚变与等离子体物理》2011年第2期117-121,共5页Nuclear Fusion and Plasma Physics

基　　金：国家自然基金资助项目(10874156);中国工程物理研究院重大技术发展基金项目(2010A0102003)

摘　　要：采用离子球自洽玻尔兹曼方程和泊松方程,得到了类氦Cr离子kα线系的两条电偶极辐射光谱能量随不同等离子体环境的变化关系。分析了光谱能量漂移量和kα线交换能随等离子体环境变化的关系,给出了光谱能量漂移量随等离子体环境参数变化的公式。结果表明,光谱能量漂移量随等离子体电子密度变化呈现出很好的线性关系。By assuming the ion sphere model,the self-consistent filed model for the Poisson-Boltzmann equation and the Dirac equation is used to calculate the energy levels of He-like chromium in hot and dense plasmas.Consequently,the spectral shifts the intercombination line and the resonance line and the shifts of the exchange energy of He-like chromium in hot and dense plasmas are studied.The results show that the two electric dipole transitions red shift nearly linearly with the increase of plasma electron density.The formula of the linear relationship is found.The results may be useful in developing the new model of dense plasma diagnosis.

关 键 词：类氦离子 离子球模型 光谱漂移 等离子体诊断 

分 类 号：O434[机械工程—光学工程]