CaⅨ-LuLⅩ(20≤Z≤71)离子3s^2 ~1S_0-3s3p ~1P_1的共振跃迁  

Resonance transitions 3s^2 ~1S_0-3s3p ~1P_1 in magnesium-like ions through CaⅨ to LuLⅩ

作　　者：牟致栋[1] 魏琦瑛[1] 

机构地区：[1]中国矿业大学理学院应用物理系,江苏徐州221008

出　　处：《兰州大学学报（自然科学版）》2005年第3期79-86,共8页Journal of Lanzhou University(Natural Sciences)

基　　金：中国矿业大学科技基金资助项目(OK4522).

摘　　要：在对CaⅨ-LuLⅩ(20≤Z≤71)离子3s3p1P1能级结构的多组态相互作用理论HFR方法计算的基础上,分析了各种效应对等电子序列离子能级结构的影响,找出了能级沿等电子序列变化的规律性.预测计算了CaⅨ-LuLⅩ(20≤Z≤71)离子3s3p1P1的组态能级,进一步计算了CaⅨ-LuLⅩ(20≤Z≤71)离子3s21S0-3s3p1P1的共振跃迁谱线波长、振子强度和跃迁概率,其中GaⅩⅩ,AsXXⅡ,TcXXXⅡ,PdXXXⅤ,TeXLⅠ和XeXLⅢ离子的3s21S0-3s3p1P1的共振跃迁谱线波长等有关数据为本文内插计算值,而BaXLⅤ-LuLⅩ的所有结果纯属本文外推预测计算结果.Because the intensity ratio of the 3s2 1S0-3s3p 1P1 transition to the 3s2 1S0-3s3p 3P1 resonance transition is a function of electron density and is useful as a density diagnostic in tokamak plasmas, the investigations are very important for resonance transitions 3s2 1S0-3s3p 1P1 in highly-stripped magnesium-like isoelectronic sequence ions. In the present work, we have calculated the energy levels of 3s3p 1P1 for magnesium-like sequence ions from CaⅨ to LuLⅩ by multi-configuration Hartree-Fock with relativistic correction (HFR) method. Taking the important effects into account, we have made a systematic analysis of the variation in the differences of energy level values between the experimental and the corresponding results calculated by HFR method along the sequence ions with the increasing Zc(Zc=Z-N+1), and have obtained a new formula for the fit calculation, with which we predicted the energy levels not been observed in experiments for magnesium-like ions GaⅩ, AsXXⅡ, TcXXXⅡ, PdXXXⅤ, TeXLⅠ and XeXLⅢ by interpolation, and the ions BaⅩ LV to LuLⅩ by extrapolation. The wavelengths, oscillator strengths and probabilities of resonance transitions 3s2 1S0-3s3p 3P1 for ions CaK to LuLⅩ are computed too. All of the predicted wavelengths of the resonance transitions 3s2 1S0-3s3p 1P1 are in good agreement within 0.005 nm of experiment-estimated uncertainty with the experimental data available at present.

关 键 词：CaⅨ-LuLX离子 共振跃迁 谱线波长 振子强度和跃迁概率 

分 类 号：O562.3[理学—原子与分子物理]