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フルテキストURL2008010181.pdf ( 1014.5KB ) 公開日 2012-12-10
タイトル体積生成型水素負イオン源の最適化に関する数値計算
タイトル別表記Numerical studies on optimization of volume produced H^- ions in a low-pressure negative ion source.
作成者福政, 修
作成者ヨミフクマサ, オサム
作成者別表記Fukumasa, Osamu
作成者所属山口大学大学院理工学研究科(工学)
内容記述(抄録等)Production of H^- ions in a steady state hydrogen discharge plasma is discussed. According to the numerical calculation of a set of particle balance equations, H^- ionsare formed mainly by dissociative attachment of slow plasma electrons (i. e. electron temperature T_e ≒ 1 eV) to highly vibrationally excited hydrogen molecules H_2 ^* (optimum vibrational level v” = 7-9), and those H_2^* (v”) are produced mainly by collisional excitation due to fast primary electrons with energies in excess of 40 eV. On enhancement of H^- yield, the effect of other H_2^* (v”) formation process caused by molecular ions or by atomic hydrogen is also discussed. Although H_2^* (v”) is essential to the H^- formation, the optimum plasma conditions for the H_2^* (v”) production are not compatible with those for the H^- formation. In order to clarify the effectiveness of a tandem two-chamber system, the relative H^- yields for single-chamber and tandem two-chamber systems are compared.
本文言語jpn
著者キーワードnegative ion source
volume production
hydrogen discharge plasma
tandem two chamber system
neutral beam heating
資料タイプtext
ファイル形式application/pdf
出版者プラズマ・核融合学会
出版者ヨミプラズマ カクユウゴウ ガッカイ
NII資料タイプ学術雑誌論文
査読の有無査読あり
ISSN0451-2375
NCIDAN00039568
掲載誌名核融合研究
60
6
開始ページ419
終了ページ435
発行日1988-12
関連情報URL(IsVersionOf)https://www.jstage.jst.go.jp/article/jspf1958/60/6/60_6_419/_article/-char/ja/
権利関係(c)プラズマ・核融合学会
著者版/出版社版出版社版
リポジトリID2008010181
地域区分山口大学
URIhttp://www.lib.yamaguchi-u.ac.jp/yunoca/handle/2008010181