类Ne－Ti离子能级及振子强度的理论计算（相对论多组态HF模型）  

RELATIVISTIC CALCULATION OF ENERGY LEVELS AND OSCILLATOR STRENGTHS FOR NEON-LIKE TITANIUM IONS

作　　者：李月明[1] 李世昌[1] 杨汉阳 孙永盛[1] 韩国兴[1] 

机构地区：[1]北京应用物理与计算数学研究所

出　　处：《计算物理》1994年第1期91-101,共11页Chinese Journal of Computational Physics

基　　金：国家高技术计划激光技术领域资助;国家自然科学基金

摘　　要：本文通过对多组态Ｄｉｒａｃ—Ｆｏｃｋ型自洽场基础上的ＧＲＡＳＰ程序进行扩充和改造，采用平均能级模型对类氖钛离子１５个组态共８９个能级一次性目洽地进行计算，计算中采用了双参量Ｆｅｒｍｉ分布有限核模型，考虑了Ｂｒｅｉｔ修正、真空极化和自能效应对能级的修正．ＬＳ与ｊｊ耦合标号分别由最大混合系数来标定，并与其它标号系统进行了比较．计算了８９个能级之间所有可能的电偶极、电四极和磁偶极的谱线跃迁概率和振子强度，振子强度的计算分别在Ｃｏｕｌｏｍｂ与Ｂａｂｕｓｈｋｉｎ两种规范下进行，并将Ｂａｂｕｓｈｋｉｎ规范下的偶极振子强度与用Ｃｏｗａｎ程序计算的非相对论长度公式下的计算结果进行了比较．The GRASP program based on the multi-configuration Dirac-Fock self-consistent method have been extended and revised, so 15 configurations which consist of 89energy levels in Ne-like titanium ions can be calculated in the same self-consistent process.In the calculations, the averaged level (AL) model and the Fermi two - parameter distribution model of the nudear volume effeCt are considered, also Breit correction, vacuum polarization and self-energy effectare counted. LS and jj coupling labels are determined by the maximum combination coefficients. Electric dipole, electric quadrupole and magnetic dipole transition probabilities and oscillator strengths are calculated. The results of oscillator strengths are given in both the Coulomb and the Babushkin gauge, and the electro-dipole oscillator strengths in Babushkin gauge are also compared with the nonrelativistic counterpart.

关 键 词：原子能级 振子强度 自洽场 

分 类 号：O562.1[理学—原子与分子物理]