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)
Year published
2003
Metadata
Show full item recordAbstract
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
Subject
Atomic, molecular and optical physics