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Identification of important error fields in stellarators using the Hessian matrix method
http://hdl.handle.net/10655/00013471
http://hdl.handle.net/10655/000134718071f4cf-4401-4b2b-b98b-be773fb77bee
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
13567_Nucl.Fusion (6.7 MB)
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| Item type | 学術雑誌論文 / Journal Article(1) | |||||||||||||||||||
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| 公開日 | 2022-09-06 | |||||||||||||||||||
| タイトル | ||||||||||||||||||||
| タイトル | Identification of important error fields in stellarators using the Hessian matrix method | |||||||||||||||||||
| 言語 | ||||||||||||||||||||
| 言語 | eng | |||||||||||||||||||
| キーワード | ||||||||||||||||||||
| 主題Scheme | Other | |||||||||||||||||||
| 主題 | stellarator coils | |||||||||||||||||||
| キーワード | ||||||||||||||||||||
| 主題Scheme | Other | |||||||||||||||||||
| 主題 | error field | |||||||||||||||||||
| キーワード | ||||||||||||||||||||
| 主題Scheme | Other | |||||||||||||||||||
| 主題 | Hessian matrix | |||||||||||||||||||
| キーワード | ||||||||||||||||||||
| 主題Scheme | Other | |||||||||||||||||||
| 主題 | sensitivity analysis | |||||||||||||||||||
| 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 |
ZHU, Caoxiang
× ZHU, Caoxiang
× GATES, David A.
× HUDSON, Stuart R.
× LIU, Haifeng
× XU, Yuhong
× SHIMIZU, Akihiro
× OKAMURA, Shoichi
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| 著者ID | ||||||||||||||||||||
| 内容記述タイプ | Other | |||||||||||||||||||
| 内容記述 | 0000-0003-2337-3232 | |||||||||||||||||||
| 抄録 | ||||||||||||||||||||
| 内容記述タイプ | Abstract | |||||||||||||||||||
| 内容記述 | Error fields are predominantly attributed to inevitable coil imperfections. Controlling error fields during coil fabrication and assembly is crucial for stellarators. Excessively tight coil tolerance increases time and cost, and, in part, led to the cancellation of the National Compact Stellarator Experiment and delay of W7-X. In this paper, we improve the recently proposed Hessian matrix method to rapidly identify important coil deviations. Two of the most common figures of merit, magnetic island size and quasi-symmetry, are analytically differentiated over coil parameters. By extracting the eigenvectors of the Hessian matrix, we can directly identify sensitive coil deviations in the order of the eigenvalues. The new method is applied to the upcoming Chinese First Quasi-axisymmetric Stellarator configuration. Important perturbations that enlarge n/m = 4/11 islands and deteriorate quasi-axisymmetry of the magnetic field are successfully determined. The results suggest each modular coil should have separate tolerance and some certain perturbation combinations will produce significant error fields. By relaxing unnecessary coil tolerance, this method will hopefully lead to a substantial reduction in time and cost. | |||||||||||||||||||
| 書誌情報 |
Nuclear Fusion 巻 59, 号 12, p. 126007, 発行日 2019-09-20 |
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| 出版者 | ||||||||||||||||||||
| 出版者 | IOP Publishing | |||||||||||||||||||
| 出版者 | ||||||||||||||||||||
| 出版者 | International Atomic Energy Agency | |||||||||||||||||||
| ISSN | ||||||||||||||||||||
| 収録物識別子タイプ | ISSN | |||||||||||||||||||
| 収録物識別子 | 0029-5515 | |||||||||||||||||||
| 書誌レコードID | ||||||||||||||||||||
| 収録物識別子タイプ | NCID | |||||||||||||||||||
| 収録物識別子 | AA00759871 | |||||||||||||||||||
| DOI | ||||||||||||||||||||
| 関連タイプ | isVersionOf | |||||||||||||||||||
| 識別子タイプ | DOI | |||||||||||||||||||
| 関連識別子 | https://doi.org/10.1088/1741-4326/ab3a7c | |||||||||||||||||||
| 権利 | ||||||||||||||||||||
| 権利情報 | This is the Accepted Manuscript version of an article accepted for publication in Nuclear Fusion. | |||||||||||||||||||
| 権利 | ||||||||||||||||||||
| 権利情報 | IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. | |||||||||||||||||||
| 権利 | ||||||||||||||||||||
| 権利情報 | The Version of Record is available online at https://doi.org/10.1088/1741-4326/ab3a7c. | |||||||||||||||||||
| 情報源 | ||||||||||||||||||||
| 関連名称 | Caoxiang Zhu et al 2019 Nucl. Fusion 59 126007 | |||||||||||||||||||
| 関連サイト | ||||||||||||||||||||
| 識別子タイプ | DOI | |||||||||||||||||||
| 関連識別子 | https://doi.org/10.1088/1741-4326/ab3a7c | |||||||||||||||||||
| 関連名称 | Publisher version | |||||||||||||||||||
| 著者版フラグ | ||||||||||||||||||||
| 出版タイプ | AM | |||||||||||||||||||
| 出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa | |||||||||||||||||||
| NAIS | ||||||||||||||||||||
| 13567 | ||||||||||||||||||||
