Absolute cross sections for multiple ionization of noble gases by swift proton impact

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Title Absolute cross sections for multiple ionization of noble gases by swift proton impact
Author Cavalcanti, Eric Gama; Sigaud, G M; Montenegro, E C; Schmidt-Böcking, H
Journal Name Journal of Physics B: Atomic, Molecular and Optical Physics
Year Published 2003
Place of publication Bristol, UK
Publisher Institute of Physics Publishing
Abstract Absolute cross sections, σq+, for multiple ionization of He (q = 1), Ne (q = 1, 2, and 3), Ar (q = 1, 2, 3, and 4), Kr (q = 1, 2, 3, and 4), and Xe (q = 1, 2, 3, 4, and 5) atoms by protons in the 0.75–3.5 MeV impact energy range have been measured. The present results are in good agreement with the previously published data in the case of the single-and double-ionization cross sections, but some non-systematic discrepancies appear for higher charge states. A detailed comparison with electron impact cross sections in these gases is performed, and it shows that the cross sections for single ionization by high-velocity protons are substantially smaller than those corresponding to equi-velocity electrons for heavier targets.
Peer Reviewed Yes
Published Yes
Publisher URI http://www.iop.org/EJ/0953-4075
Alternative URI http://dx.doi.org/10.1088/0953-4075/36/14/311
Volume 36
Page from 3087
Page to 3096
ISSN 0953-4075
Date Accessioned 2009-11-11
Date Available 2009-12-11T06:45:59Z
Language en_AU
Faculty Faculty of Science, Environment, Engineering and Technology
Subject PRE2009-Atomic and Molecular Physics
URI http://hdl.handle.net/10072/26813
Publication Type Journal Articles (Refereed Article)
Publication Type Code c1x

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