High-power electron gun for electron-ion crossed-beams experiments

28th International Conference on Photonic, Electronic and Atomic Collisions

Borovik, A.^1 ; Shi, W.^1 ; Jacobi, J.^1 ; Schippers, S.^1 ; Müller, A.^1

Institut für Atom- und Molekülphysik, Justus-Liebig University, Giessen

35392, Germany^1

关键词: Crossed beams;    Crossed-beam experiment;    Electron currents;    Electron ions;    Electron-ion collision;    High power;    Mechanical construction;    Optics simulations;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/488/14/142007/pdf
DOI  :  10.1088/1742-6596/488/14/142007

来源: IOP

【 摘 要 】

We present a high-performance electron gun to be employed in crossed-beams electron-ion collision experiments. High electron currents, e.g., 1 A at 3.5 keV, have already been demonstrated verifying the results of electron optics simulations carried out prior to the mechanical construction of the gun. Currently, the device undergoes a major test phase in a specifically constructed ultra high vacuum setup before the integration into the ion beamline of the Giessen crossed-beam experiment.