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Observation of Hydrogen and Cesium Spectra in a Negative Ion Source for a Neutral Beam Injector using a Multi-channel Spectrometer
http://hdl.handle.net/10655/6334
http://hdl.handle.net/10655/633435b7b6b0-ef7b-4655-ac7e-7e16921d81e9
名前 / ファイル | ライセンス | アクション |
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2_S1047.pdf (510.6 kB)
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Item type | 学術雑誌論文 / Journal Article_02(1) | |||||
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公開日 | 2011-03-11 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Observation of Hydrogen and Cesium Spectra in a Negative Ion Source for a Neutral Beam Injector using a Multi-channel Spectrometer | |||||
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 | spectroscopy | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | hydrogen | |||||
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 | oxygen | |||||
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, K.
× IKEDA, K.× FANTZ, U.× NAGAOKA, K.× TAKEIRI, Y.× OSAKABE, M.× TSUMORI, K.× KANEKO, O.× OKA, Y. |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Effective production of hydrogen negative ions (H-) is one of the important issues in high power neutral beam injection (NBI) for fusion experimental devices. Cesium (Cs) vapor is seeded in the H- sources to enhance the H- production rate, which depends strongly on the amount of Cs inside the source. On the other hand, oxygen and water attenuate the production rate. In order to investigate the states of those species inside ion source, we have installed two multi-channel spectrometer systems with different spectral resolution. Hydrogen emissions, Cs emissions and oxygen emission are clearly observed with the time resolution of several handled milliseconds. Most of evaporated Cs atoms ionize in arc discharge plasma, and the emission increases strongly due to the ion back streaming with beam extraction. Oxygen neutral emission increases at the beginning of the beam conditioning, and its evaporation depends on the condition of the grid system. | |||||
書誌情報 |
en : Plasma and Fusion Research 巻 Vol.2, p. S1047-1 - S1047-4, 発行日 2007-01-01 |
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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.2.S1047 | |||||
権利 | ||||||
権利情報 | ?2007 The Japan Society of Plasma Science and Nuclear Fusion Research |