Electron-impact dissociation of CH2+ ions: Measurement of CH+ and C+ fragment ions
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
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.
absolute cross-sections, molecular-ions, recombination, ionization, collision, plasma, excitation, states, beam
IdentifiersURN: urn:nbn:se:su:diva-56244DOI: 10.1103/PhysRevA.75.052715ISI: 000246890400102OAI: oai:DiVA.org:su-56244DiVA: diva2:410295
authorCount :42011-04-132011-04-122011-04-13Bibliographically approved