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  • CH4 ionization and dissociation by proton and electron impact

    Author(s)
    Luna, H
    Cavalcanti, EG
    Nickles, J
    Sigaud, GM
    Montenegro, EC
    Griffith University Author(s)
    Cavalcanti, Eric G.
    Year published
    2003
    Metadata
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    Abstract
    Absolute dissociative and non-dissociative ionization cross sections of CHn+ (n = 0-4) molecules by protons in the 0.5-3.5 MeV impact energy range have been measured. The present results are in good agreement with the previously published data, where overlap occurs. A decay-route model for CH4 dissociation induced by proton impact is proposed and a method to obtain the corresponding branching ratios is introduced. The consistency and extent of the proposed model and methodology is verified through its application in the case of electron-impact dissociation.Absolute dissociative and non-dissociative ionization cross sections of CHn+ (n = 0-4) molecules by protons in the 0.5-3.5 MeV impact energy range have been measured. The present results are in good agreement with the previously published data, where overlap occurs. A decay-route model for CH4 dissociation induced by proton impact is proposed and a method to obtain the corresponding branching ratios is introduced. The consistency and extent of the proposed model and methodology is verified through its application in the case of electron-impact dissociation.
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    Journal Title
    Journal of Physics B: Atomic, Molecular and Optical Physics
    Volume
    36
    Publisher URI
    https://iopscience.iop.org/article/10.1088/0953-4075/36/23/009
    DOI
    https://doi.org/10.1088/0953-4075/36/23/009
    Subject
    Atomic, molecular and optical physics
    Publication URI
    http://hdl.handle.net/10072/26792
    Collection
    • Journal articles

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