摘要
使用DTA(detailedtermaccounting)模型计算了温度为 5 6eV、密度为 0 .0 1g/cm3 的Mg等离子体的辐射不透明度以及Rosseland和Planck平均不透明度 .对于处于局域热动平衡 (LTE)下的Mg等离子体 ,利用Saha方程计算出各价离子的丰度 .MCHF方法得到Mg各价离子的能级以及束缚 束缚跃迁的振子强度 ,考虑了Doppler展宽和碰撞展宽 ,谱线线型采用Voigt线型 .束缚 自由以及自由 自由吸收截面使用AA模型得到 .
The spectral resolved opacity of high temperature Mg plasma at a temperature of 56 eV and a density of 0.01 g/cm 3 is calculated by the detailed term accounting (DTA) model. Saha equation is applied to obtain the population distribution of the plasma in local thermodynamic equilibrium. Atom levels and bound-bound absorption oscillator strengths are obtained from a multi-configuration Hartree-Fock (MCHF) calculation that includes Breit-Pauli relativistic correction. After considering the impact broadening and Doppler broadening, the spectral line has a Vogit profile. Bound-free and free-free absorption are also cvlculated by averaged atom (AA) model.
出处
《原子核物理评论》
CAS
CSCD
北大核心
2002年第2期261-264,共4页
Nuclear Physics Review
基金
国家自然科学基金资助项目 ( 199740 75 )
国家杰出青年科学基金 ( 10 0 2 5 416 )~~
