金等离子体辐射不透明度的计算  

Calculation of Radiative Opacities for Au Plasmas

作　　者：杨莉[1] 杜仁华 刘汉奎[1] 陶才德[1] 

机构地区：[1]西华师范大学物理与电子信息学院,四川南充637002 [2]南充市高坪中学,四川南充637100

出　　处：《西华师范大学学报（自然科学版）》2006年第1期38-41,共4页Journal of China West Normal University(Natural Sciences)

摘　　要：考虑到能级的精细结构,将谱线能级用类氢近似细分,改进了平均原子模型中束缚-束缚跃迁吸收系数的计算方法.用改进后的平均原子模型计算高Z元素Au等离子体在一定温度和密度下的辐射不透明度,计算结果表明该模型的计算结果比原平均原子模型更接近Monte-Carlo模型的计算结果,而且计算量比Monte-Carlo模型少得多.Considering the fine structure of energy level, the energies of spectrum lines are subdivided mrough Hydrogen-like approximation. The method of calculation for photoabsorption coefficient in the bound-bound transition of the average atom model is improved. The improved average atomic model is used, to calculate opacities of Au plasmas at given temperature and density. The calculation with modified model is closer to the one with Monte-Carlo model than original average atom model, but the corresponding amount of calculation decreases sharply compared with Monte-Carlo model.

关 键 词：金等离子体 平均原子模型 Monte-Carlo模型 STA模型 

分 类 号：O53[理学—等离子体物理]