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  1. 研究論文

Nonlocal particle loss effects on the electron kinetics in a direct current helium diffusion-controlled positive column

https://nitech.repo.nii.ac.jp/records/4486
https://nitech.repo.nii.ac.jp/records/4486
9e47cb8e-b1f4-46e3-85e1-623f12c72786
名前 / ファイル ライセンス アクション
POP 本文_fulltext (167.2 kB)
Copyright (1997) American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.The following article appeared in Physics of Plasmas, 4(4), pp.1160- 1165 ; 1997 and may be found at http://link.aip.org/link/?php/4/1160
Item type 学術雑誌論文 / Journal Article(1)
公開日 2012-11-06
タイトル
タイトル Nonlocal particle loss effects on the electron kinetics in a direct current helium diffusion-controlled positive column
言語 en
言語
言語 eng
資源タイプ
資源タイプ識別子 http://purl.org/coar/resource_type/c_6501
資源タイプ journal article
著者 Sirghi, L.

× Sirghi, L.

en Sirghi, L.

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Oe, K.

× Oe, K.

en Oe, K.

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Kimura, Takashi

× Kimura, Takashi

en Kimura, Takashi

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著者別名
姓名 木村, 高志
書誌情報 en : Physics of Plasmas

巻 4, 号 4, p. 1160-1165, 発行日 1997-04
出版者
出版者 American Institute of Physics
言語 en
ISSN
収録物識別子タイプ ISSN
収録物識別子 1070-664X
item_10001_source_id_32
収録物識別子タイプ NCID
収録物識別子 AA10987555
出版タイプ
出版タイプ VoR
出版タイプResource http://purl.org/coar/version/c_970fb48d4fbd8a85
内容記述
内容記述タイプ Other
内容記述 The electron energy distribution function (EEDF) in a positive column of low-pressure and discharge current is determined not only by the local collision processes and the axial electric field action, but also by the transport phenomenon, the radial ambipolar diffusion due to the gradient of plasma density. Thus, to completely determine the EEDF, the Boltzmann equation including radial inhomogeneity terms has to be solved. The present work proposes a simplified method to account for the radial inhomogeneity, when the electron kinetics in the central part of the positive column can be reduced to be one energy-dimensional. The radial diffusion of electrons is taken into account via a wall loss term. A greatly simplified kinetic equation is obtained and its numerical solutions agree well with the EEDF determined from Langmuir probe measurements in a helium dc discharge positive column. Also, a comparison of the present method with local and nonlocal approach theories is made. A discrepancy is observed, especially at high energies, where either local or nonlocal approach theories predict too-large values of EEDF.
言語 en
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