毛细管放电条件下类氖序列原子参量计算与分析

利用多组态求解相对论性的Hartree-Fock-Roothan方程(HFR)方法计算了类氖离子(Z=13～27)2s^22p^5—2s^22p^53s能级之间跃迁的原子参量，包括类氖氩激光系统的能级，振子强度，自发辐射衰变速率，能级寿命，电子碰撞激发截面及电子碰撞激发速率系数等。以类氖氩离子为例，分析了等离子体内46．9nm激光跃迁的粒子数反转的形成及谱线放大过程，讨论了其它几条谱线产生增益的可能性，分析了激光线振子强度随核电荷数的变化规律。根据获得的原子参量，计算了利用毛细管放电产生类氖氩和类氖氪x射线激光的放电参量，其中类氖氩毛细管放电的初始压强的范围为30~90Pa，放电电流峰值为10～50kA。理论计算结果为类氖氩x光激光实验分析，深入研究等离子体反转动力学，激光增益的估算及理论方案设计等提供了基本数据。

Computation and Analysis of Atomic Parameters in Ne-Like Squence with Discharging Capillary

The atomic parameters of the transmition 2s22p6-2s22p53s of Ne-like ions with nuclear charge Z from 13 to 27, including energy level, oscillator strength, spontaneous radiation deay time, level life, electron-collision excitation cross-section, electron-collision excitation rate and so on are obtained by using Hartree-Fock-Roothan (HFR equations). The spectral line enlargement and population inversion formation in Ne-like Ar at 46.9 nm laser transition and the probability of gain generation of other spectral line are discussed with the help of the atomic data. The dependence of oscillator strength on nuclear charge is illustrated. The discharge parameters for Ne-like Ar and Ne-like Kr X-ray laser with capillary discharge are also given based on the obtained atomic parameters. The range of the initial pressure of Ne-like Ar gas is 30～90 Pa and the peak value of the discharge current is 10～50 kA for lasing of Ne-like ions.