Development of a method to measure molecular frame EELS cross sections

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

Watanabe, N.^1 ; Yamada, S.^1 ; Hirayama, T.^1 ; Seki, A.^1 ; Suzuki, D.^1 ; Takahashi, M.^1

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

980-8577, Japan^1

关键词: Electron ions;    High-energy electron;    Incident electrons;    Inner shell excitation;    Molecular frame;    Scattering cross section;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/635/7/072030/pdf
DOI  :  10.1088/1742-6596/635/7/072030

来源: IOP

【 摘 要 】

We have developed an apparatus for electron-ion coincidence experiments to examine high-energy electron scattering cross sections in molecular frame. By using the apparatus a preliminary experiment is performed for inner-shell excitations of N2at incident electron energy of 1.5 keV. The experimental result for the 1s → π∗excitation clearly shows that the electron-scattering cross section for the fixed-in-space N2molecule has successfully been obtained.