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Suppression of damages on cathodes in the negative hydrogen ion source for the stable NBI system
https://repo.qst.go.jp/records/83798
https://repo.qst.go.jp/records/83798b5f8e985-9fb3-46a0-ab37-e7cc3512cb71
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2021-11-15 | |||||
| タイトル | ||||||
| タイトル | Suppression of damages on cathodes in the negative hydrogen ion source for the stable NBI system | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| 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 | |||||
| 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 |
Yuji, Shimabukuro
× Yuji, Shimabukuro× Junichi, Hiratsuka× Masahiro, Ichikawa× Masamichi, Murayama× mae quinones Saquilayan, Glynnis× Masashi, Kisaki× Atsushi, Kojima× Hiroyuki, Tobari× Mieko, Kashiwagi× Yuji, Shimabukuro× Junichi, Hiratsuka× Masahiro, Ichikawa× Masamichi, Murayama× mae quinones Saquilayan, Glynnis× Masashi, Kisaki× Atsushi, Kojima× Hiroyuki, Tobari× Mieko, Kashiwagi |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | A protection system of ion source components from local abnormal discharge has been developed with ITER-class filament-driven negative ion source for high power and stable long-term operation. Protection from unpredictable discharge is a common issue for filament and RF-driven ion sources. To understand how fast should be cut off the discharge, threshold energy not to cause critical damage on the filament was investigated. The experimental exploration concluded that the energy less than 1.87 J or fast cut-off faster than 343 μs is the threshold for the robust protection of the filaments. A developed system successfully detected and cut off the discharge at 100 μs under noisy environments with the high current power supply. Moreover, the detection system is remotely adjustable. Such versatile protection system can contribute to any abnormal discharges in high current system including various ion sources, gyrotron, and high voltage components. | |||||
| 書誌情報 |
Journal of Physics: Conference Series 巻 2244, 号 1, p. 012106-1-012106-5, 発行日 2021-04 |
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| 出版者 | ||||||
| 出版者 | Institute of Physics | |||||
| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 1742-6588 | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.1088/1742-6596/2244/1/012106 | |||||
| 関連サイト | ||||||
| 識別子タイプ | URI | |||||
| 関連識別子 | https://iopscience.iop.org/article/10.1088/1742-6596/2244/1/012106 | |||||
