Commissioning of a high-power electron gun for electron-ion crossed-beams experiments

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

Ebinger, B.^1 ; Borovik, A.^1 ; Döhring, B.M.^1 ; Molkentin, T.^1 ; Müller, A.^2 ; Schippers, S.^1

I. Physikalisches Institut, Justus-Liebig-Universität Gießen, Giessen

35392, Germany^1

Institut für Atom- und Molekülphysik, Justus-Liebig-Universität Gießen, Giessen

35392, Germany^2

关键词: Crossed beams;    Electron impact-ionization;    Electron ions;    Energy ranges;    High currents;    High power;    Ion charge state;    Measurements of;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/875/6/052037/pdf
DOI  :  10.1088/1742-6596/875/6/052037

来源: IOP

【 摘 要 】

Synopsis A high-power electron gun delivering a ribbon-shaped electron beam with energies of 10-3500 eV and high currents at all energies is currently being commissioned at the electron-ion crossed-beams setup in Giessen. As compared to the formerly used electron gun [1], the new one will enable us to perform measurements of cross-sections for electron-impact ionization of ions in a wider energy range and, consequently, for ion charge states that were not accessible before.