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Development of an Intense Negative Hydrogen Ion Source with a Wide-Range of External Magnetic Filter Field
http://hdl.handle.net/10655/2341
http://hdl.handle.net/10655/2341b2ce2757-15dc-445a-9f2d-8c88929ccbf2
Item type | 研究報告書 / Research Paper(1) | |||||
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公開日 | 2010-02-05 | |||||
タイトル | ||||||
タイトル | Development of an Intense Negative Hydrogen Ion Source with a Wide-Range of External Magnetic Filter Field | |||||
言語 | en | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | negative hydrogen ion source | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | negative-ion-based NBI | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | external magnetic filter | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | high arc efficiency | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | low gas pressure operation | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | two-stage acceleration | |||||
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 |
"Takeiri, Y.
× "Takeiri, Y.× Ando, A.× Kaneko, O.× Oka, Y.× Tsumori, K.× Akiyama, R.× Asano, E.× Kawamoto, T.× Kuroda, T.× TANAKA, M.× Kawakami, H." |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | "An intense negative hydrogen ion source has been developed, which has a strong external magnetic filter field in the wide area of 35 cm x 62 cm produced by a pair of permanent magnet rows located with 35.4 cm separation. The filter strength is 70 G in the center and the line-integrated filter strength is 850 G cm, which keeps the low electron temperature in the extraction region. Strong cusp magnetic field, 1.8 kG on the chamber surface, is generated for improvement of the plasma confinement. These resulted in the high arc efficiency at the low operational gas pressure. A 16.2 A of the H ^- ion current with the energy of 47 keV was obtained at the arc efficiency of 0.1 A/kW at the gas pressure of 3.8 mTorr in the cesium-mode operation. The magnetic field in the extraction gap is also strong, 450 G, for the electron suppression. The ratio of the extraction to the negative ion currents was less than 2.2 at the gas pressure of 3 mTorr. The two-stage acceleration was tried, and a 13.6 A of the H^- ion beam was accelerated to 125 keV." | |||||
書誌情報 |
en : Research Report NIFS-Series 発行日 1994-09-01 |
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報告書番号 | ||||||
値 | NIFS-307 | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0915-633X |