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フルテキストURL2008010018.pdf ( 3.8MB ) 公開日 2010-04-16
タイトルEffects of external magnetic filter on behaviors of fast primary electrons in a volume negative ion source
作成者Mori, Shigefumi
Fukumasa, Osamu
作成者ヨミモリ, シゲフミ
フクマサ, オサム
作成者別表記森, 成史
福政, 修
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 hydrogen negative ion H^-, volume production, and behaviors of fast primary electrons is studied theoretically. Trajectories of fast primary electrons are calculated, including collisional effects with hydrogen molecules. Active region of fast electrons depends strongly on the field intensity of the magnetic filter (MF), B_<MF>, and filament position. Therefore, spatial distributions of ionization and vibrational excitation collision points are also affected with changing B_<MF>. Although number of vibrational excitation collision points is much smaller than that of ionization collision points due to different mean free path, the relative intensity is varied by changing energy of fast electrons. According to the results and discussions including transport of produced vibrationally excited molecules, 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eng
資料タイプtext
ファイル形式application/pdf
出版者American Institute of Physics
NII資料タイプ学術雑誌論文
査読の有無査読あり
ISSN0034-6748
NCIDAA00817730
掲載誌名Review of Scientific Instruments
79
2
開始ページ02A526
発行日2008-02
DOIinfo:doi/10.1063/1.2805381
関連情報URL(IsPartOf)http://rsi.aip.org/rsi/
権利関係c2008 American Institute of Physics
著者版/出版社版出版社版
備考[ページ]の”02A526”は論文番号
リポジトリID2008010018
地域区分山口大学
URIhttp://www.lib.yamaguchi-u.ac.jp/yunoca/handle/2008010018