【摘要】 采用相对论和非相对论原子自洽场方法,计算了类Na离子(原子序数为11~92)的3s-np,3p-ns和3p-nd跃迁过程的激发能和光学振子强度;通过比较相对论与非相对论的结果,研究了M壳层电子的相对论效应随原子序数的变化规律。结果表明:对n=3的跃迁过程,相对论效应主要是影响激发能,对线强度(或跃迁矩阵元)的影响不重要;对于n>3的跃迁过程,相对论效应同时影响线强度和激发能,通常对线强度的影响更大。这些结果对惯性约束聚变和X射线激光研究中需要的不透明度参数计算有重要的参考意义。更多还原

【Abstract】 The relativistic and non-relativistic self-consistent-field methods were utilized to calculate the 3s-np,3p-ns and 3p-nd excitation energies and oscillator strengths for Na-like ions(atomic number was 11~92).The relativistic effects for the M-shell transitions were discussed by comparing the relativistic results with the non-relativistic ones.It is found that the relativistic effects mainly affect the excitation energies for n=3 transitions and the effects on line strengths(or transitions matrix elements)are small.However,the relativistic effects influence both excitation energies and line strengths for n>3 transitions,and in most cases,the influence on line strengths is stronger.The results are important for calculating the opacities in the research on inertial confinement fusion and X-ray laser.更多还原