Transport properties of electron swarms in gaseous neon at low values of E/N

G.J Boyle, MJE Casey, RD White, Yong Jun Cheng, James Mitroy

    Research output: Contribution to journalArticleResearchpeer-review

    Abstract

    A detailed analysis of electron swarm transport through neon gas at applied reduced electric fields of E/N < 2 Td is presented. The root mean square difference of transport parameters calculated from a recent all-order many-body perturbation theory treatment (Cheng et al 2014 Phys. Rev. A 89 012701) with drift velocity measurements by the Australian National University group (Robertson 1972 J. Phys. B 5 648) is less than 1%. Differences of about 3% exist with characteristic energies, DT/μ, (Koizumi et al 1984 J. Phys. B 17 4387) indicating an incompatibility at the 3% level between drift velocity and transverse diffusion coefficient measurements. Multi-term solutions of the Boltzmann equation indicate that the two-term approximation gives transport parameters accurate to better than 0.01%. The diffusion constant at thermal energies is found to be sensitive to the numerical representation of the cross section. A recommended elastic momentum transfer cross section has been constructed that has a maximum difference of 0.5% with all ANU drift velocity data for E/N < 1.6 Td and a root mean square difference that is about a factor of 2 smaller.
    Original languageEnglish
    Pages (from-to)1-9
    Number of pages9
    JournalJournal of Physics D - Applied Physics
    Volume47
    Issue number43
    DOIs
    Publication statusPublished - 5 Aug 2014

    Fingerprint

    Neon
    Electron transport properties
    neon
    transport properties
    Momentum transfer
    Electrons
    Boltzmann equation
    Thermal energy
    Velocity measurement
    incompatibility
    electrons
    Gases
    cross sections
    Electric fields
    velocity measurement
    thermal energy
    momentum transfer
    diffusion coefficient
    perturbation theory
    electric fields

    Cite this

    Boyle, G.J ; Casey, MJE ; White, RD ; Cheng, Yong Jun ; Mitroy, James. / Transport properties of electron swarms in gaseous neon at low values of E/N. In: Journal of Physics D - Applied Physics. 2014 ; Vol. 47, No. 43. pp. 1-9.
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    abstract = "A detailed analysis of electron swarm transport through neon gas at applied reduced electric fields of E/N < 2 Td is presented. The root mean square difference of transport parameters calculated from a recent all-order many-body perturbation theory treatment (Cheng et al 2014 Phys. Rev. A 89 012701) with drift velocity measurements by the Australian National University group (Robertson 1972 J. Phys. B 5 648) is less than 1{\%}. Differences of about 3{\%} exist with characteristic energies, DT/μ, (Koizumi et al 1984 J. Phys. B 17 4387) indicating an incompatibility at the 3{\%} level between drift velocity and transverse diffusion coefficient measurements. Multi-term solutions of the Boltzmann equation indicate that the two-term approximation gives transport parameters accurate to better than 0.01{\%}. The diffusion constant at thermal energies is found to be sensitive to the numerical representation of the cross section. A recommended elastic momentum transfer cross section has been constructed that has a maximum difference of 0.5{\%} with all ANU drift velocity data for E/N < 1.6 Td and a root mean square difference that is about a factor of 2 smaller.",
    keywords = "Boltzmann equation, Diffusion, Electric fields, Electron mobility, Australian National University, cross section, Drift velocity measurements, Electron swarm, Many body perturbation theory, Momentum transfer cross sections, Numerical representation, Root mean square differences, Neon",
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    Transport properties of electron swarms in gaseous neon at low values of E/N. / Boyle, G.J; Casey, MJE; White, RD; Cheng, Yong Jun; Mitroy, James.

    In: Journal of Physics D - Applied Physics, Vol. 47, No. 43, 05.08.2014, p. 1-9.

    Research output: Contribution to journalArticleResearchpeer-review

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    AU - Mitroy, James

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    KW - Electron mobility

    KW - Australian National University

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    KW - Drift velocity measurements

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