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H- Ion Source Using a Localized Virtual Magnetic Filter in the Plasma Electrode: Type I LV Magnetic Filter
http://hdl.handle.net/10655/2635
http://hdl.handle.net/10655/26355e1724d1-2c1b-4956-be1a-13b156026fc4
Item type | 研究報告書 / Research Paper(1) | |||||
---|---|---|---|---|---|---|
公開日 | 2010-02-05 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | H- Ion Source Using a Localized Virtual Magnetic Filter in the Plasma Electrode: Type I LV Magnetic Filter | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | hydrogen negative ion | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | ion source | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | magnetic filter | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | cesium deposition | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | NBI | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_18ws | |||||
資源タイプ | research report | |||||
アクセス権 | ||||||
アクセス権 | metadata only access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
著者 |
"Oka, Y.
× "Oka, Y.× Kaneko, O.× Tsumori, K.× Takeiri, Y.× Osakabe, M.× Kawamoto, T.× Asano, E.× Akiyama, R." |
|||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | "A new multicusp H^- ion source using a Localized Virtual magnetic filter of type I [Ref.6] in the plasma electrode is investigated. A multipole (MP) arrangement with a spacing of 10 mm of the magnet bars holds an extraction hole, optimizing the efficient production of high H^- current, and at the same time only a small electron component was co-extracted with the H^- ions. The local filter arrangement separates the beam electrons at a low energy. It is shown that the co-extracted total electron current is determined principally by the integrated magnetic field flux (Gcm) of the local filter with an extraction system at a constant extraction voltage. When the value of the Gcm is increased, the total electron component is reduced, while the H^- electrical efficiency had a braod maximum around the optimized value of the Gcm. A thicker plasma electrode should be necessary for sufficient reduction of electron current. In pure hydrogen operation, the achieved current density of H^- is 10 mA/cm^2. when Cs was seeded in a filter optimized for pure volume mode H^- production, the maximum H^- current density obtained is 51 mA/cm^2 and the ratio I_ele/H^- is ~ 0.4 without applying a bias potential." | |||||
書誌情報 |
en : Research Report NIFS-Series 発行日 1999-12-01 |
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報告書番号 | ||||||
NIFS-622 | ||||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0915-633X |