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Optical Measurement of Cesium Behavior in a Large H− Ion Source for a Neutral Beam Injector
http://hdl.handle.net/10655/6368
http://hdl.handle.net/10655/6368c4ffc674-3808-404d-b10f-e4a0a6d8d18c
名前 / ファイル | ライセンス | アクション |
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pfr2010_05-S2102.pdf (798.9 kB)
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Item type | 学術雑誌論文 / Journal Article_02(1) | |||||
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公開日 | 2011-04-04 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Optical Measurement of Cesium Behavior in a Large H− Ion Source for a Neutral Beam Injector | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | neutral beam injector | |||||
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 | cesium | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | arc discharge | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
著者 |
IKEDA, Katsunori
× IKEDA, Katsunori× NAGAOKA, Kenichi× TAKEIRI, Yasuhiko× TSUMORI, Katsuyoshi× OSAKABE, Masaki× NAKANO, Haruhisa× KANEKO, Osamu |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Optical emission in a negative hydrogen ion source for the Large Helical Device Neutral Beam Injector (LHD-NBI) has been measured to investigate the behavior of Cs. Two optical sight lines exist parallel to the plasma grid, in the discharge area and in the magnetic filter area near the plasma grid. In the discharge area, the spectrum intensity from Cs+ ions is considerably increased during 20 s of the beam extraction. This indicates a considerable increase in the Cs+ density inside the plasma due to the impact of back-streaming H+ ions. A strong neutral Cs spectrum is observed in the magnetic filter area, where the electron density is lower than in the discharge area. The rate of increase of neutral Cs is much enhanced after t = 30 s, probably because the Cs adsorbed on the cooled region inside the arc chamber evaporates because its temperature increases during the long pulse discharge. | |||||
書誌情報 |
en : Plasma and Fusion Research 巻 Vol5, p. S2102-1 -S2102-4, 発行日 2010-01-01 |
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出版者 | ||||||
出版者 | プラズマ・核融合学会 | |||||
DOI | ||||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1585/pfr.5.S2012 | |||||
権利 | ||||||
権利情報 | ? 2010 The Japan Society of Plasma Science and Nuclear Fusion Research |