NO-γ emissions from streamer discharges: Direct electron impact excitation versus resonant energy transfer

Ningyu Liu, Victor P. Pasko

    Research output: Contribution to journalArticle

    9 Scopus citations

    Abstract

    It has been established that production of NO-γ emission in pulsed corona discharges is dominated by the energy transfer from N2(A 3εu+) to the NO ground state NO(χ2πr) while direct excitation by electron impact is negligible. However, recent studies suggest that the electron impact excitation plays a more important role. In this work, we report modelling results of NO-? emission associated with streamer discharges using two cross section data sets available in the literature. The first set was originally reported by Mojarrabi et al (1996 Phys. Rev. A 54 2977?82) and later updated by Brunger et al (2000 J. Phys. B: At. Mol. Opt. Phys. 33 809?19); the second set was published by Hayashi (1990 Nonequilibrium Processes in Partially Ionized Gases (NATO Advanced Science Institutes Series, Series B, Physics vol 220) ed M Capitelli and J N Bardsley (New York: Plenum) pp 333?40). According to the results, the role played by the electron impact excitation in the production of NO-γ is drastically different when different cross sections are used. The results indicate that the first data set leads to better agreement with experimental measurements.

    Original languageEnglish (US)
    Article number082001
    JournalJournal of Physics D: Applied Physics
    Volume43
    Issue number8
    DOIs
    StatePublished - Feb 26 2010

    All Science Journal Classification (ASJC) codes

    • Electronic, Optical and Magnetic Materials
    • Condensed Matter Physics
    • Acoustics and Ultrasonics
    • Surfaces, Coatings and Films

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