钠原子激发态2p内壳层光电离过程的伴线结构  

Photoelectron Satellite Structure from the 2p Inner-shell Photoionization of Excited Sodium Atoms

作　　者：刘晓斌[1] 师应龙[1] 李向兵 王玉平 胡宏伟 罗月娥 LIU Xiaobin;SHI Yinglong;LI Xiangbing;WANG Yuping;HU Hongwei;LUO Yuee(Department of Physics,Tianshui Normal University,Tianshui,Gansu 741001,China;Department of Physics,Shangqiu Normal University,Shangqiu,Henan 476000,China;Department of Mechanical and Electronic Engineering,Jingdezhen University,Jingdezhen,Jiangxi 333000,China)

机构地区：[1]天水师范学院物理系,甘肃天水741001 [2]商丘师范学院物理系,河南商丘476000 [3]景德镇学院机械电子与工程系,江西景德镇333000

出　　处：《光子学报》2021年第11期235-242,共8页Acta Photonica Sinica

基　　金：National Natural Science Foundation of China(Nos.11764035,11964031,12064037);Natural Science Foundation of Gansu Province(Nos.18JR3RE246,20JR10RA793);Tianshui Normal University“QinglanTalents”Project。

摘　　要：基于多组态Dirac-Fock方法,理论研究了钠原子2p光电离过程高分辨率的光电子谱及振激跃迁过程的相应伴线谱。展示并解释了正常光电离和强振激跃迁过程相应光电子谱的主要特征;结果表明光电离后2p空穴的电子关联在一定程度上改变了相应谱线的能量位置,对出射光电子谱的结构有很大影响。实验测量与理论模拟谱之间的一致性说明了该理论方法的可靠性,从而能够正确辨认相应的实验观测谱线。Based on multiconfiguration Dirac-Fock method,the high-resolution 2p photoelectron spectra and satellites originating from the corresponding shakeup transitions during the photoionization of neutral sodium atoms are theoretically studied.The main features of photoelectron spectra from the normal photoionization and strong shake-up transitions are presented and interpreted.It is shown that the electron correlations of the 2p hole affect the energy positions of photolines and give rise to considerable structures in the photoelectron spectra.The reasonable agreement between the measured results and simulated spectra confirms the reliability of the theoretical approaches and enables us to assign the observed photolines.

关 键 词：光电子谱 振激 多组态DIRAC-FOCK方法 电子关联 弛豫 

分 类 号：O562.3[理学—原子与分子物理]