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Electron-impact dissociation of CH2+ ions: Measurement of CH+ and C+ fragment ions
Stockholm University, Faculty of Science, Department of Physics.
2007 (English)In: Physical Review A. Atomic, Molecular, and Optical Physics, ISSN 1050-2947, E-ISSN 1094-1622, Vol. 75, no 5, 52715- p.Article in journal (Refereed) Published
Abstract [en]

Absolute cross sections for electron-impact dissociation of CH2+ producing CH+ and C+ fragment ions were measured in the 3-100 eV range using a crossed electron-ion beams technique with total uncertainties of about 11% near the cross section peak. The cross sections are nearly identical for energies above 15 eV, but they are dramatically different at lower energies. The CH+ channel exhibits a strong peak rising from an observed threshold of about 6 eV; the C+ channel is relatively flat down to the lowest measured energy. Ionization cross sections for the CH2+ ion are also presented.

Place, publisher, year, edition, pages
2007. Vol. 75, no 5, 52715- p.
Keyword [en]
absolute cross-sections, molecular-ions, recombination, ionization, collision, plasma, excitation, states, beam
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:su:diva-56244DOI: 10.1103/PhysRevA.75.052715ISI: 000246890400102OAI: oai:DiVA.org:su-56244DiVA: diva2:410295
Note
authorCount :4Available from: 2011-04-13 Created: 2011-04-12 Last updated: 2017-12-11Bibliographically approved

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