Conference paper

Publication year: 2017

Pages: 317-322

Journal: Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms

Volume number: 408

ISSN: 0168-583X

eISSN: 1872-9584

DOI Link: https://doi.org/10.1016/j.nimb.2017.03.136

Conference: 18th International Conference on the Physics of Highly Charged Ions (HCI)

Publisher: Elsevier

Abstract: 
The sensitivity of an electron ion crossed-beams experiment is mainly determined by the densities of both beams in the interaction region. Aiming at the extension of the available range of accessible electron energies and densities, a new high-power electron gun has been developed and fabricated. It delivers a ribbon-shaped beam with currents of up to 1 A at variable energies reaching 3500 eV at the maximum. The design goals of the gun are being met by using a configuration of electrodes, which allows for a variety of operation modes. Here, we report on the results of the ongoing tests of the new electron gun. In particular, electron-impact ionization cross sections of He+ and Xe5+ ions were measured employing the animated crossed-beams technique. The results are in excellent agreement with literature data. (C) 2017 Elsevier B.V. All rights reserved.

Harvard Citation style: Ebinger, B., Borovik, A., Molkentin, T., Müller, A. and Schippers, S. (2017) Commissioning of a powerful electron gun for electron-ion crossed-beams experiments, Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms, 408, pp. 317-322. https://doi.org/10.1016/j.nimb.2017.03.136

APA Citation style: Ebinger, B., Borovik, A., Molkentin, T., Müller, A., & Schippers, S. (2017). Commissioning of a powerful electron gun for electron-ion crossed-beams experiments. Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms. 408, 317-322. https://doi.org/10.1016/j.nimb.2017.03.136