Journal article

Publication year: 1991

Pages: 289-296

Journal: Surface Science

Volume number: 257

Issue number: 1-3

ISSN: 0039-6028

DOI Link: https://doi.org/10.1016/0039-6028(91)90799-X

Publisher: Elsevier

Abstract: 
The neutralization of slow He+ and He2+ ions on Pb surfaces allows the study of Auger capture, resonant capture into autoionizing states and of a Landau-Zener-type two-state charge exchange process. In the primary energy range of 300 eV to 6 keV the processes are experimentally accessible by measuring the reflected ion energy spectra and the secondary electron energy spectra. The results lead to estimates of the transition rates (1.7-3.0 x 10(15) s-1 for Auger capture and 4.2 x 10(15) s-1 for resonant capture into autoionizing states) of the charge exchange processes and of the distances (3.55-4.0 angstrom for the Landau-Zener process) where these processes in front of the metal surface occur.

Harvard Citation style: Schippers, S., Oelschig, S., Heiland, W., Folkerts, L., Morgenstern, R., Eeken, P., et al. (1991) Neutralization of He+ and He2+ on Pb surfaces, Surface Science, 257(1-3), pp. 289-296. https://doi.org/10.1016/0039-6028(91)90799-X

APA Citation style: Schippers, S., Oelschig, S., Heiland, W., Folkerts, L., Morgenstern, R., Eeken, P., Urazgil'din, I., & Niehaus, A. (1991). Neutralization of He+ and He2+ on Pb surfaces. Surface Science. 257(1-3), 289-296. https://doi.org/10.1016/0039-6028(91)90799-X