Asymmetry of velocity distribution function and inhomogeneity-induced flow associated with neutral depletion structure in an ECR plasma

Kenichiro Terasaka, M. Hattori, K. Ogiwara, S. Yoshimura, M. Aramaki, A. Okamoto, Masayoshi Tanaka

    研究成果: ジャーナルへの寄稿記事

    1 引用 (Scopus)

    抄録

    A neutral depletion structure with strong inhomogeneity in the radial direction has been observed in an electron cyclotron resonance plasma. We have measured the velocity distribution function of neutrals with a high resolution laser-induced fluorescence system and examined the relationship between asymmetry of distribution function and flow induced by inhomogeneity. It has been revealed that the third order moment of distribution function, that is, skewness, is proportional to the inhomogeneity-induced flow, and a simple relation between the skewness and the normalized flow velocity has been obtained and confirmed in the experiment.

    元の言語英語
    記事番号112120
    ジャーナルPhysics of Plasmas
    23
    発行部数11
    DOI
    出版物ステータス出版済み - 11 1 2016

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    depletion
    inhomogeneity
    skewness
    velocity distribution
    distribution functions
    asymmetry
    electron cyclotron resonance
    laser induced fluorescence
    flow velocity
    moments
    high resolution

    All Science Journal Classification (ASJC) codes

    • Condensed Matter Physics

    これを引用

    Asymmetry of velocity distribution function and inhomogeneity-induced flow associated with neutral depletion structure in an ECR plasma. / Terasaka, Kenichiro; Hattori, M.; Ogiwara, K.; Yoshimura, S.; Aramaki, M.; Okamoto, A.; Tanaka, Masayoshi.

    :: Physics of Plasmas, 巻 23, 番号 11, 112120, 01.11.2016.

    研究成果: ジャーナルへの寄稿記事

    Terasaka, Kenichiro ; Hattori, M. ; Ogiwara, K. ; Yoshimura, S. ; Aramaki, M. ; Okamoto, A. ; Tanaka, Masayoshi. / Asymmetry of velocity distribution function and inhomogeneity-induced flow associated with neutral depletion structure in an ECR plasma. :: Physics of Plasmas. 2016 ; 巻 23, 番号 11.
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    T1 - Asymmetry of velocity distribution function and inhomogeneity-induced flow associated with neutral depletion structure in an ECR plasma

    AU - Terasaka, Kenichiro

    AU - Hattori, M.

    AU - Ogiwara, K.

    AU - Yoshimura, S.

    AU - Aramaki, M.

    AU - Okamoto, A.

    AU - Tanaka, Masayoshi

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    N2 - A neutral depletion structure with strong inhomogeneity in the radial direction has been observed in an electron cyclotron resonance plasma. We have measured the velocity distribution function of neutrals with a high resolution laser-induced fluorescence system and examined the relationship between asymmetry of distribution function and flow induced by inhomogeneity. It has been revealed that the third order moment of distribution function, that is, skewness, is proportional to the inhomogeneity-induced flow, and a simple relation between the skewness and the normalized flow velocity has been obtained and confirmed in the experiment.

    AB - A neutral depletion structure with strong inhomogeneity in the radial direction has been observed in an electron cyclotron resonance plasma. We have measured the velocity distribution function of neutrals with a high resolution laser-induced fluorescence system and examined the relationship between asymmetry of distribution function and flow induced by inhomogeneity. It has been revealed that the third order moment of distribution function, that is, skewness, is proportional to the inhomogeneity-induced flow, and a simple relation between the skewness and the normalized flow velocity has been obtained and confirmed in the experiment.

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