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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 | |||||
