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Long-pulse Operation of a Cesium-Seeded High-Current Large Negative Ion Source
http://hdl.handle.net/10655/2721
http://hdl.handle.net/10655/27214e29a4ff-55ca-4d05-b75f-dd402f4d3619
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 | Long-pulse Operation of a Cesium-Seeded High-Current Large Negative Ion Source | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | negative 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 | long pulse operation | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | cesium seeding | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | long-pulse arc discharge | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | grid thermal load | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | neutralization efficiency | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | grid aperture shaping | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | stripping loss | |||||
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.× Osakabe, M.× Oka, Y.× Tsumori, K.× Kaneko, O.× Takanashi, T.× Asano, E.× Kawamoto, T.× Akiyama, R.× Kuroda, T." |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | "A high-power large negative ion source has been operated for a long pulse duration. A three-grid single-stage accelerator is used, where the extraction grid is shaped so that the secondary electrons generated on the extraction grid would be prevented from leaking into the acceleration gap. A stable long-pulse arc discharge with an arc power of 100 kW has been obtained over 15 s by balancing an individual arc current flowing through each filament. The cesium-seeded operation is not influenced by a temperature rise of over 100 degree C of the plasma grid during the long-pulse arc discharge. As a result, the negative ion beam power of 330 kW (91 keV-3.6 A) was produced stably for 10 s from an area of 25 cm X 26 cm, where the current density was 21 mA/cm^2 and the negative ion power density was 1.9 kW/cm^2. The neutralization efficiency of accelerated negative ions has been measured including the residual positive and negative ion ratios by the water calorimetry of the beam dumps. The result agrees well with the calculation result." | |||||
書誌情報 |
en : Research Report NIFS-Series 発行日 1997-01-01 |
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報告書番号 | ||||||
NIFS-476 | ||||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0915-633X |