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  • 學位論文

鈹原子光游離過程的研究

Studies on Photoionization Processes of the Beryllium Atom

指導教授 : 黃克寧

摘要


本論文以「多組態相對混相理論(MCRRPA)」探討鈹原子的光游離過程。我們計算介於第一和第二游離閾之間的光游離截面,以及光電子角分佈與極化參數。在此光子能量範圍裡,光電子譜呈現「五個瑞德伯系列」的自離共振結構。我們詳細探討這些共振附近角分佈和極化參數的變化,以及其與共振位置與寬度的關係,並且提供將來實驗探討的面向。

關鍵字

光游離 多組態 相對論

並列摘要


Photoionization parameters in neutral beryllium are calculated in the multiconfiguration relativistic random-phase approximation to resolve the interplay between relativistic and correlation effects in low-Z atoms or ions. Precise energies and widths of five Rydberg series of low-lying doubly-excited states are given. Experimental studies on angular distribution of photoelectrons are suggested to obtain information on widths of some states, which cannot be obtained from total cross section measurements.

並列關鍵字

Photoionization Beryllium Configuration Relativistic

參考文獻


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