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摘要


本論文以「多組態相對混相理論」探討原子序為5、6、7、8、9、10、15、20等八個類鈹離子的光游離過程。我們計算入射光子能量大於 的游離閾而小於 的游離閾時的光游離截面積,以及光電子角分佈參數和自旋極化參數等物理量。在此能量範圍裡,光電子譜呈現「五個里德伯系列」的自離共振結構。我們詳細探討在這些激發共振態附近角分佈參數和自旋極化參數的變化,以及其與共振態的位置與寬度的關係。

關鍵字

光游離

並列摘要


The multiconfiguration relativistic random-phase approximation is applied to the photoionization of Beryllium-like ions. The influence of electrons and relativistic effects on the cross section, angular distribution, and spin polarization parameters of photoelectrons is studied in detail. In the photon-energy region between and ionization thresholds of autoionization due to the doubly-excited states, there are five Rydberg series coupling strongly to each other. The relation of the variations of the angular distribution, and spin polarization parameters in the vicinity of each resonance to the positions and widths of these doubly-excited states are studied.

並列關鍵字

photoionization

參考文獻


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