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  1. NIFS Series
  2. NIFS Report

Long-pulse Operation of a Cesium-Seeded High-Current Large Negative Ion Source

http://hdl.handle.net/10655/2721
http://hdl.handle.net/10655/2721
4e29a4ff-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.

WEKO 64634

en "Takeiri, Y.

Search repository
Osakabe, M.

× Osakabe, M.

WEKO 64635

en Osakabe, M.

Search repository
Oka, Y.

× Oka, Y.

WEKO 64636

en Oka, Y.

Search repository
Tsumori, K.

× Tsumori, K.

WEKO 64637

en Tsumori, K.

Search repository
Kaneko, O.

× Kaneko, O.

WEKO 64638

en Kaneko, O.

Search repository
Takanashi, T.

× Takanashi, T.

WEKO 64639

en Takanashi, T.

Search repository
Asano, E.

× Asano, E.

WEKO 64640

en Asano, E.

Search repository
Kawamoto, T.

× Kawamoto, T.

WEKO 64641

en Kawamoto, T.

Search repository
Akiyama, R.

× Akiyama, R.

WEKO 64642

en Akiyama, R.

Search repository
Kuroda, T."

× Kuroda, T."

WEKO 64643

en Kuroda, T."

Search repository
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
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
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