The theoretical studies on the electron-impact single ionization of Se3+

29th International Conference on Photonic, Electronic, and Atomic Collisions

Zhang, D.H.^1 ; Jing, J.Q.^1 ; Xie, L.Y.^1 ; Qu, Y.Z.^2 ; Jiang, J.^1 ; Dong, C.Z.^1

Key Laboratory of Atomic and Molecular Physics and Functional Materials of Gansu Province, College of Physics and Electronic Engineering, Northwest Normal University, Lanzhou

730070, China^1

College of Material Sciences and Optoelectronic Technology, University of the Chinese Academy of Sciences, Beijing

100049, China^2

关键词: Atomic codes;    Distorted waves;    Double autoionization;    Electron impact;    Excitation autoionization;    Near thresholds;    Single ionization;    Theoretical study;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/635/5/052049/pdf
DOI  :  10.1088/1742-6596/635/5/052049

来源: IOP

【 摘 要 】

We have performed fully relatively level-to-level distorted-wave (LLDW) calculations for both direct ionization (DI) and excitation autoionization (EA) of ground state Se3+ion using the flexible atomic code (FAC). Large EA contributions come from the excitations 4p to nl and 3d to nl. Our calculated total DI+EA cross section have been compared with the recent experimental results. It suggests that the contributions of resonace-excitation double-autoionization process (REDA) to electron impact single ionization of Se3+at the near threshold are more than 25%.