Japanese | English

トップページへ戻る

詳細

   
フルテキストURL2007010010.pdf ( 506.2KB ) 公開日 2010-04-16
タイトルModelling of negative ion transport in caesium-seeded volume negative ion sources
作成者Fukumasa, Osamu
Nishida, Ryo
作成者ヨミフクマサ, オサム
作成者別表記福政, 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)Trajectories of H- ions are calculated numerically by solving the 3D motion equation, including effects of collisional destruction, elastic collisions and charge exchange collisions. According to these trajectories, the extraction probability of H- ions produced at any location inside the source and the energy relaxation of extracted H- ions are estimated as a function of gas pressure. Effects of production zone and field intensity of the magnetic filter on extraction probability are also discussed. The extraction probability of surface produced H- ions is much higher than that of volume produced H- ions. The kinetic energy of extracted H- ions is reduced mainly by charge exchange collisions with H in higher pressure region and by elastic collisions with H+ in lower pressure region. We also briefly discuss the pressure dependence of extracted negative ion currents combining the present numerical results and the results of the model calculation with the zero-dimensional code.
本文言語eng
資料タイプtext
ファイル形式application/pdf
出版者International Atomic Energy Agency
NII資料タイプ学術雑誌論文
査読の有無査読あり
ISSN0029-5515
NCIDAA00759871
掲載誌名Nuclear Fusion
46
6
開始ページS275
終了ページS280
発行日2006-06
DOIinfo:doi/10.1088/0029-5515/46/6/S07
関連情報URL(IsPartOf)http://www.iop.org/EJ/journal/0029-5515/1
著者版/出版社版出版社版
リポジトリID2007010010
地域区分山口大学
URIhttp://www.lib.yamaguchi-u.ac.jp/yunoca/handle/2007010010