Energetic electrons moving along peripheral magnetic field lines in magnetically expanding plasmas

Yuichi Igarashi, Kazunori Takahashi, Tamiya Fujiwara

研究成果: Article査読

2 被引用数 (Scopus)

抄録

Two-dimensional structures of a floating potential of a Langmuir probe are measured in a magnetically expanding plasma using permanent magnets for two choices of the argon gas pressures of 1 and 3 mtorr, where an electric double layer (DL) forms for 1 mtorr while it disappears for 3 mtorr. The narrow region of the negative floating potential, which indicates the presence of energetic electrons, is observed to spread out along the outermost magnetic field line not intersecting the source wall for both pressures. It is found that the energetic electrons are transported from the source along the field lines, irrespective of the presence of the DL. Here, the typical structure observed for 1 mtorr is presented.

本文言語English
論文番号5771127
ページ(範囲)2442-2443
ページ数2
ジャーナルIEEE Transactions on Plasma Science
39
11 PART 1
DOI
出版ステータスPublished - 2011 11
外部発表はい

ASJC Scopus subject areas

  • 核物理学および高エネルギー物理学
  • 凝縮系物理学

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