Co^(16+)离子电子碰撞L层电子电离布居Co^(17+)离子激发能级的速率系数

Rate Coefficients for Populating Co^(17+) Ions Excited Levels by Electron Impact L-shell Ionization of Co^(16+) Ions

在库仑-玻恩交换近似下,使用由我们改善了的Sampson的Z标度类氢模型及Grant的多组态Dirac-Fock(MCDF)程序包,计及了高荷电靶离子的相对论效应,计算了元素Co的类Na离子L层电子碰撞电离产生的类NeCo离子n=3激发能级布居的速率系数,所得结果比采用原始的Sampson方法计算的结果降低了25％左右。

Rate coefficients for populating n=3 excited levels of cobalt Ne-like ions by electron impact ionization of L-shell of Na-like ions have been calculated by using our improved Sampson's Z scaled hydrogenic model and Grant's multi-configurational Dirac-Fock(MCDF) program package on the basis of consideration of relativistic effect of high charged target ions under Coulomb-Born exchange approximation. The present results are compared with those obtained by the Sampson's approach and found to be lower by 25％ or so.