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フルテキストURLフルテキストリンクなし
タイトルTwo-dimensional particle simulation of negative ion extraction from a volume source
作成者Naitou, Hiroshi
Fukumasa, Osamu
Sakachou, Kouji
Mutou, Kouji
作成者ヨミナイトウ, ヒロシ
フクマサ, オサム
サカチョウ, コウジ
ムトウ, コウジ
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)Two-dimensional electrostatic particle simulation was done to study the extraction of negative ions from a volume plasma source. The simulation model is a rectangular system which consists of an extraction grid, a plasma grid, and a grounded wall. Full dynamics of electrons, ions, and negative ions are followed. Negative ions are extracted from the plasma region to the extraction grid through a slit in the plasma grid. for the lower value of extraction grid potential, the simulation results agree with the Child-Langmuir law, where the extracted negative ion current is proportional to the three-halves power of the potential of the extraction grid. For the higher value of extraction grid potential, the space charge effect of negative ions, which enter into the beamline at the top of the concavity of the positive ion boundary, reduces the negative ion current from the prediction of the Child-Langmuir law.
本文言語eng
資料タイプtext
出版者Elsevier
NII資料タイプ学術雑誌論文
査読の有無査読あり
ISSN0920-3796
NCIDAA10691446
掲載誌名Fusion engineering and design
26
1-4
開始ページ523
終了ページ528
発行日1995
DOIinfo:doi/10.1016/0920-3796(94)00219-W
関連情報URL(IsPartOf)http://www.sciencedirect.com/science/journal/09203796
著者版/出版社版その他
リポジトリID2008010121
地域区分山口大学
URIhttp://www.lib.yamaguchi-u.ac.jp/yunoca/handle/2008010121