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Absolute Cross-section Measurements for Electron-impact Ionization of Ar-7+

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Rachafi, S. Belic, DS. Duponchelle, M. Jureta, Jozo [UCL] Zambra, M. Defrance, Pierre [UCL]

The first absolute cross section measurements for single and double electron impact ionization of sodium-like Ar7+ are reported. The animated crossed beams method has been employed in the energy range from threshold to 3000 eV. The measured cross sections for single ionization are higher than the theoretical and semi-empirical predictions by about 20-50%. This discrepancy has been associated with the contribution of the indirect ionization processes. The double ionization cross section is only 1% of the single one.

Document type Article de périodique (Journal article) – Article de recherche
Publication date 1991
Language Anglais
Journal information "Journal of Physics B: Atomic, Molecular and Optical Physics" - Vol. 24, no. 5, p. 1037-1047 (1991)
Peer reviewed yes
Publisher Iop Publishing Ltd (Bristol)
issn 0953-4075
e-issn 1361-6455
Publication status Publié
Affiliation UCL
Links
Bibliographic reference Rachafi, S. ; Belic, DS. ; Duponchelle, M. ; Jureta, Jozo ; Zambra, M. ; et. al. Absolute Cross-section Measurements for Electron-impact Ionization of Ar-7+. In: Journal of Physics B: Atomic, Molecular and Optical Physics, Vol. 24, no. 5, p. 1037-1047 (1991)
Permanent URL http://hdl.handle.net/2078.1/51188