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Visualization of H? Dynamics in Extraction Region of Negative-Ion Source by Hα Imaging Spectroscopy
http://hdl.handle.net/10655/10149
http://hdl.handle.net/10655/10149d1972b5d-b9ba-44cf-9857-4482a3e9e510
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
pfr2013_08-1301036.pdf (1.1 MB)
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| Item type | 学術雑誌論文 / Journal Article_02(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2013-08-05 | |||||
| タイトル | ||||||
| タイトル | Visualization of H? Dynamics in Extraction Region of Negative-Ion Source by Hα Imaging Spectroscopy | |||||
| 言語 | en | |||||
| 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 | H? | |||||
| キーワード | ||||||
| 言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | Hα | |||||
| キーワード | ||||||
| 言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | mutual neutralization | |||||
| キーワード | ||||||
| 言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | imaging spectroscopy | |||||
| 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× NAKANO, Haruhisa× TSUMORI, Katsuyoshi× KISAKI, Masashi× NAGAOKA, Kenichi× OSAKABE, Masaki× TAKEIRI, Yasuhiko× KANEKO, Osamu |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | We developed a new imaging spectroscopy diagnostic tool for Hα emission and installed it on a negative hydrogen ion (H?) source to investigate the H? dynamics in the extraction region. During beam extraction, the Hα emission dropped; the same drop also appeared in the H? density (as measured by cavity ring-down spectroscopy). The reduction in the Hα emission results from the reduction in the excited hydrogen population caused by mutual neutralization processes between H+ and H? ions, which in turn are due to a decrease in the H? density. We find a reduction structure in Hα that is observed inside the plasma farther than 20 mm from the plasma grid (PG) surface. The result indicates that H? ions produced at the PG surface accumulate in the extraction region, so we conclude that they flow toward the PG apertures. | |||||
| 書誌情報 |
en : Plasma and Fusion Research 巻 Vol.8, p. 1301036-1 - 1301036-4, 発行日 2013-04-01 |
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| 出版者 | ||||||
| 出版者 | プラズマ・核融合学会誌 | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.1585/pfr.8.1301036 | |||||
| 権利 | ||||||
| 権利情報 | ? 2013 The Japan Society of Plasma Science and Nuclear Fusion Research | |||||
