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タイトル振動励起分子生成を考慮したNBI用水素負イオン源内の高速電子の振舞い
タイトルヨミシンドウ レイキ ブンシ セイセイ オ コウリョシタ NBI ヨウ スイソ フイオンゲン ナイ ノ コウソク デンシ ノ フルマイ
タイトル別表記Behaviors of fast primary electrons with collisional effects including production of vibrationally excited hydrogen molecules in a hydrogen negative ion source for a NBI system
作成者森, 成史
福政, 修
作成者ヨミモリ, シゲフミ
フクマサ, オサム
作成者別表記Mori, Shigefumi
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)The relationship between enhancement of H^- negative ion volume production and behaviors of fast primary electros are studied. Trajectories of fast primary electrons are calculated numerically, including collisional effects with hydrogen molecules. Taking into account our experimental study, following two main targets are discussed: (1) Effect of field intensity of the magnetic filter (MF) and a filament position on active region of fast primary electrons, and (2) combination effect of the field intensity of the MF and the filament position for controlling behaviors of fast electrons. Active region of fast electrons depends strongly on the field intensity of the MF and filament position. Therefore, spatial distributions of ionization and vibrational excitation collision points are also changed in the same manner although number of vibrational excitation collision points is lower than that of ionization collision points due to longer mean free path. According to the results and discussions including transport of produced vibrationally excited molecules and H^- ions, for enhancement of H^- production, it is desired that fast electrons should approach the MF position and move into the downstream region as deep as possible without destruction of H^- ions. To realize these conditions, good combination between filament position and the intensity of the MF should be required.
本文言語jpn
著者キーワード高速一次電子
振動励起分子
負イオン体積生成
負イオン源
磁気フィルター
フィラメント位置
資料タイプtext
出版者電気学会
出版者ヨミデンキ 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
ISSN0385-4205
NCIDAN10136312
掲載誌名電気学会論文誌. A, 基礎・材料・共通部門誌
掲載誌名別表記The transactions of the Institute of Electrical Engineers of Japan. A, A publication of Fundamentals and Materials Society
127
12
開始ページ747
終了ページ756
発行日2007
DOIinfo:doi/10.1541/ieejfms.127.747
関連情報URL(IsPartOf)http://www.jstage.jst.go.jp/browse/ieejfms/-char/ja/
著者版/出版社版その他
リポジトリID2008010053
地域区分山口大学
URIhttp://www.lib.yamaguchi-u.ac.jp/yunoca/handle/2008010053