Al^(10+)的电子碰撞电离及有关过程

CALCULATION AND ANALYSIS OF THE ELECTRON-IMPACT IONIZATION CROSS SECTIONS FOR AI^(M+)

用扭曲波方法计算Al^(10+)基态在Is^22s的Is,2s电子和第一激发态Is^2 2p的2p电子的电离截面以及基态的总电离截面(包括内壳层激发自电离).入射电子能量(?)(即(?)以2s电离能I_(2s)为单位)为1.05,1.125,l.25,1.5,2.25,4……同时计算出了电离阈值以下的激发截面(乘以所谓态密度),实现了在电离阈值处与阈值以上电离能量微分截面光滑联接;计算了光电离截面积分值,实现了在入射电子能量趋于无穷时与电子碰撞电离截面衔接.计算结果与其他方法进行了比较.

Electron-impact ionization cross sections for the 1s22s, 1s22p state of lithium-like aluminium are calculated by using distorted wave package, the inner-shell-exci-Cation-autoionization contribution is included in the final results. In this paper the electron-impact excitation cross sections and photoionization cross sections of the above two states are also given. It is shown that the ionization cross sections near threshold can joint smoothly with the corresponding excitation cross section and also meet the integrals of photoionization cross sections as the energy of the incidental electron become infinite.