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Electron-Impact Total Ionization Cross Sections of Molecular Ions

The Binary-Encounter-Bethe (BEB) model for electron-impact total ionization cross sections of neutral molecules has been modified for molecular positive ions. The total ionization cross sections for [Formula: see text] , [Formula: see text] , CD(+), and CO(+) from the modified BEB formula are compar...

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Detalles Bibliográficos
Autores principales: Kim, Yong-Ki, Irikura, Karl K., Ali, M. A.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: [Gaithersburg, MD] : U.S. Dept. of Commerce, National Institute of Standards and Technology 2000
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4872685/
https://www.ncbi.nlm.nih.gov/pubmed/27551611
http://dx.doi.org/10.6028/jres.105.032
Descripción
Sumario:The Binary-Encounter-Bethe (BEB) model for electron-impact total ionization cross sections of neutral molecules has been modified for molecular positive ions. The total ionization cross sections for [Formula: see text] , [Formula: see text] , CD(+), and CO(+) from the modified BEB formula are compared to available experimental data. The theory is in good agreement with experimental data on [Formula: see text] , [Formula: see text] , and CD(+), but the experimental data by Belic et al. on [Formula: see text] , and CO(+) are lower than the theory. The large difference between the theory and experiment on CO(+) is a strong indication of the dominance of the dissociative ionization channel, CO(+)→C(+)+O(+), which was not included in the experiment.