Conference paper

Publication year: 1995

Pages: 573-576

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

Volume number: 98

Issue number: 1-4

ISSN: 0168-583X

eISSN: 1872-9584

DOI Link: https://doi.org/10.1016/0168-583X(95)00014-3

Conference: 7th International Conference on the Physics of Highly Charged Ions (HCI-94)

Publisher: Elsevier

Abstract: 
For crossed-beams electron-ion collision studies involving highly charged ions, we have developed an electron gun delivering a high-density electron beam of 2 mm O at energies up to 6.5 keV and currents up to 430 mA. In order to decrease the spread of the electron energy distribution, the electron beam space charge in the collision region with the ion beam is compensated by means of trapped ions resulting from electron impact ionization of residual gas particles. First measurements are showing good agreement of the obtained absolute cross sections for the single ionization of Xe8+ and Fe9+ ions with available experimental data. Employing a fast energy-scanning technique, energy-sharp resonance structures in the cross section for the triple ionization of Ba2+ have been resolved. From these measurements, the spread of the electron energy distribution at 800 eV can be estimated to 3.2 eV FWHM.

Harvard Citation style: STENKE, M., AICHELE, K., HATHIRAMANI, D., HOFMANN, G., STEIDL, M., VOLPEL, R., et al. (1995) A HIGH-CURRENT ELECTRON-GUN FOR CROSSED-BEAMS ELECTRON-ION COLLISION STUDIES AT KEV ENERGIES, Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 98(1-4), pp. 573-576. https://doi.org/10.1016/0168-583X(95)00014-3

APA Citation style: STENKE, M., AICHELE, K., HATHIRAMANI, D., HOFMANN, G., STEIDL, M., VOLPEL, R., & SALZBORN, E. (1995). A HIGH-CURRENT ELECTRON-GUN FOR CROSSED-BEAMS ELECTRON-ION COLLISION STUDIES AT KEV ENERGIES. Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 98(1-4), 573-576. https://doi.org/10.1016/0168-583X(95)00014-3