Molecular-frame EELS experiment on inner-valence ionization of N2

30th International Conference on Photonic, Electronic, and Atomic Collisions

Watanabe, Noboru^1 ; Yamada, So^1 ; Takahashi, Masahiko^1

IMRAM, Tohoku University, Katahira 2-1-1, Aoba-ku Sendai

980-8577, Japan^1

关键词: Coincidence techniques;    Incident electrons;    Ionization dynamics;    Momentum transfer dependence;    Scattered electrons;    Scattering cross section;    Valence ionization;    Vector correlations;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/875/7/062022/pdf
DOI  :  10.1088/1742-6596/875/7/062022

来源: IOP

【 摘 要 】

Synopsis We report molecular-frame electron scattering cross sections of N2, obtained using an electron-ion coincidence technique. The vector correlation between the scattered electron and the fragment ion has been measured at incident electron energy of 1.4 keV for inner-valence ionization of N2. The angular distributions of the electron scattering cross sections thus obtained exhibit clear momentum transfer dependence, indicating the significant change of the ionization dynamics due to contributions from electric multipole transitions.