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Electron-impact dissociative excitation and ionization of N(2)D(+)
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2011 (English)In: Physical Review A. Atomic, Molecular, and Optical Physics, ISSN 1050-2947, E-ISSN 1094-1622, Vol. 84, no 3, 032714- p.Article in journal (Refereed) Published
Abstract [en]

Absolute cross sections for electron-impact dissociation of N(2)D(+) producing N(2)(+), ND(+), and N(+) ion fragments were measured in the 5- to 100-eV range using a crossed electron-ion beams technique. In the 5- to 20-eV region, in which dissociative excitation (DE) is the principal contributing mechanism, N(2)(+) production dominates. The N(2)(+) + D dissociation channel shows a large resonant-like structure in the DE cross section, as observed previously in electron impact dissociation of triatomic dihydride species [M. Fogle, E. M. Bahati, M. E. Bannister, S. H. M. Deng, C. R. Vane, R. D. Thomas, and V. Zhaunerchyk, Phys. Rev. A 82, 042720 (2010)]. In the dissociative ionization (DI) region, 20- to 100-eV, N(2)(+), ND(+), and N(+) ion fragment production are comparable. The observance of the ND(+) and N(+) ion fragments indicate breaking of the N-N bond along certain dissociation channels.

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2011. Vol. 84, no 3, 032714- p.
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Natural Sciences
URN: urn:nbn:se:su:diva-66538DOI: 10.1103/PhysRevA.84.032714ISI: 000295137500009OAI: diva2:469788
authorCount :7Available from: 2011-12-27 Created: 2011-12-20 Last updated: 2011-12-27Bibliographically approved

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Thomas, Richard D.Zhaunerchyk, Vitali
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