热等离子体中的相对论线跃迁概率研究

RELATIVISTIC LINE TRANSITION PROBABILITIES IN HOT DENSE PLASMAS

本文的目的是给出一种计算线跃迁概率的方法并同时研究线跃迁概率对热等离子体的温度、密度的敏感性。 对于有界原子,利用含温Thomas-Fermi统计势求解了径向Dirac波动方程,给出了计算电偶极线跃迁的严格理论公式和金元素在不同温度、密度下若干谱线的计算结果。

The purpose of this paper is to give a method to calculate the relativistic line transition probabilities and to investigate the sensitivity of these proba-bilites to the temperature and density of hot dense plasmas. An algorithm is presented to solve the radial Dirac equation in a temperature-density dependence Thomas-Fermi potetial for an atom with the limited radius. An exact theoretical formula is presented to calculate the relativistic electric dipole line transition probability. The transition probabilities for gold at defferent temperatures and densities have been calculated. Meanwhile the transitional probabilites, as function of density for various temperatures and as function of temperature for various densities, are presented by numerical data or figures.