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    Benchmark cross sections for electron-impact total single ionization of helium

    Access Status
    Open access via publisher
    Authors
    Bray, Igor
    Fursa, Dmitry
    Date
    2011
    Type
    Journal Article
    
    Metadata
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    Citation
    Bray, Igor and Fursa, Dmitry V. 2011. Benchmark cross sections for electron-impact total single ionization of helium. Journal of Physics B: Atomic, Molecular and Optical Physics. 44 (6): pp. 1-3.
    Source Title
    Journal of Physics B
    DOI
    10.1088/0953-4075/44/6/061001
    ISSN
    0953-4075
    School
    Department of Imaging and Applied Physics
    URI
    http://hdl.handle.net/20.500.11937/30507
    Collection
    • Curtin Research Publications
    Abstract

    We establish the total single ionization cross section for electron-impact ionization of helium, to an accuracy of few per cent, from near threshold to 1 keV. This is done fully ab initio using the convergent close-coupling method without the often-used frozen-core approximation. We find excellent agreement with the most recent measurements of Rejoub et al (2002 Phys. Rev. A 65 042713) and Sorokin et al (2004 J. Phys. B: At. Mol. Opt. Phys. 37 3215), which are around 5% less than the previously used standard.

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