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Vacuum Insulation in Negative Ion Accelerator with Long Gap and Large Surface for Fusion Application
https://repo.qst.go.jp/records/85900
https://repo.qst.go.jp/records/8590075db28ef-6163-4167-85d3-dccbcb383b2a
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2022-04-07 | |||||
| タイトル | ||||||
| タイトル | Vacuum Insulation in Negative Ion Accelerator with Long Gap and Large Surface for Fusion Application | |||||
| 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 |
Atsushi, Kojima
× Atsushi, Kojima× Masamichi, Murayama× Masashi, Kisaki× Kazuhiro, Watanabe× Naoki, Shibata× Hiroyuki, Tobari× Masahiro, Ichikawa× Junichi, Hiratsuka× mae quinones Saquilayan, Glynnis× Yuji, Shimabukuro× Mieko, Kashiwagi× Yasushi, Yamano× Atsushi, Kojima× Masamichi, Murayama× Masashi, Kisaki× Kazuhiro, Watanabe× Naoki, Shibata× Hiroyuki, Tobari× Masahiro, Ichikawa× Junichi, Hiratsuka× mae quinones Saquilayan, Glynnis× Yuji, Shimabukuro× Mieko, Kashiwagi |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | A scaling technique has been developed in order to predict the voltage holding capability of the world-largest electrostatic accelerator for fusion application having a long gap vacuum insulation around 1 m with large surface area of more than 6 m 2 . One of critical issues for design of such large-size accelerator is the development of the prediction model based on the experimental results. For this purpose, the 1/5 scale mockup has been developed, which is composed of the 5-stage accelerator with the high voltage bushing in the vacuum vessel. Direct comparison of the sustainable voltages in the 1/5 scale and full-scale high voltage busing only shows that a voltage scaling in 1/5 scale size is 55%. It was found that the voltage scaling is consistent with the prediction based on the empirical scaling according to the surface area and gap length. As a result, the voltage holding capability of the 1/5 scale mockup is 400 kV in the experiment, which indicates an estimation of 720 kV in full-scale with a real configuration. This is the first experiment-based prediction of the voltage holding capability for the largest accelerator for ITER. The improvement of the voltage holding capability has been already planned by using multi-layer electrostatic shields. In such experiment, the developed scaling technique is useful to predict the voltage holding capability for large vacuum components which can not be easily tested. | |||||
| 書誌情報 |
IEEE Transactions on Plasma Science 巻 ISDEIV2021, p. 420-425, 発行日 2021-11 |
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| 出版者 | ||||||
| 出版者 | IEEE | |||||
| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 2471-786X | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.1109/ISDEIV46977.2021.9587111 | |||||
| 関連サイト | ||||||
| 識別子タイプ | URI | |||||
| 関連識別子 | https://ieeexplore.ieee.org/document/9587111 | |||||
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Atsushi, Kojima, Masamichi, Murayama, Masashi, Kisaki, Kazuhiro, Watanabe, Naoki, Shibata, Hiroyuki, Tobari, Masahiro, Ichikawa, Junichi, Hiratsuka, mae quinones Saquilayan, Glynnis, Yuji, Shimabukuro, Mieko, Kashiwagi, Yasushi, Yamano, Atsushi, Kojima, Masamichi, Murayama, Masashi, Kisaki, Kazuhiro, Watanabe, Naoki, Shibata, Hiroyuki, Tobari, Masahiro, Ichikawa, Junichi, Hiratsuka, mae quinones Saquilayan, Glynnis, Yuji, Shimabukuro, Mieko, Kashiwagi, n.d., Vacuum Insulation in Negative Ion Accelerator with Long Gap and Large Surface for Fusion Application: IEEE, 420–425 p.
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