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The three-dimensional equilibrium with magnetic islands and MHD instabilities in the CFQS quasi-axisymmetric stellarator
http://hdl.handle.net/10655/00013405
http://hdl.handle.net/10655/00013405b5cbe456-1eb0-4bf7-bee1-a5818cc343c9
名前 / ファイル | ライセンス | アクション |
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13506_Nucl.Fusion (3.2 MB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2022-07-22 | |||||
タイトル | ||||||
タイトル | The three-dimensional equilibrium with magnetic islands and MHD instabilities in the CFQS quasi-axisymmetric stellarator | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | stellarator | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | three-dimensional equilibrium | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | quasi-axisymmetric stellarator | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | magnetic island | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | bootstrap current | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | stochastic magnetic field lines | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | magnetohydrodynamics | |||||
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 |
WANG, Xian-Qu
× WANG, Xian-Qu× XU, Yuhong× SHIMIZU, Akihiro× ISOBE, Mitsutaka× OKAMURA, Shoichi× TODO, Yasushi× WANG, Hao× LIU, Haifeng× HUANG, Jie× ZHANG, Xin× LIU, Hai× CHENG, Jun× TANG, Changjian× the CFQS Team |
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著者ID | ||||||
内容記述タイプ | Other | |||||
内容記述 | 0000-0001-8485-895X | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | The equilibrium of the Chinese first quasi-axisymmetric stellarator (CFQS) has been investigated by the HINT code. It is found that the stochastization of magnetic field lines expands with the increase in the volume-averaged beta value 〈β〉 in the plasma boundary. In the high-β regime, the generation of large magnetic islands at rational surfaces not only leads to an effective shrinkage of the plasma confinement region but also increases the outward shift of the magnetic axis. With bootstrap current effects, the low-order islands spread over the whole plasma area, leading to a stochastization of magnetic field lines due to island chain overlapping. However, for a flat pressure profile, the magnetic islands are significantly suppressed so that the magnetic surfaces can be fairly maintained. Moreover, the magnetohydrodynamic (MHD) instabilities in the optimized CFQS configurations have been simulated by the MEGA code. The linear properties of unstable resistive MHD modes are studied. The results show that in the CFQS the main MHD behaviour is dominated by the resistive ballooning modes with strong mode coupling. The mode structure and resistivity scaling are consistent with related theories. | |||||
書誌情報 |
Nuclear Fusion 巻 61, 号 3, p. 036021, 発行日 2021-02-15 |
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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 | isIdenticalTo | |||||
識別子タイプ | DOI | |||||
関連識別子 | https://doi.org/10.1088/1741-4326/abd3ec | |||||
権利 | ||||||
権利情報 | © 2021 IAEA, Vienna | |||||
権利 | ||||||
権利情報 | Original content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. | |||||
権利 | ||||||
権利情報 | Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI. | |||||
情報源 | ||||||
関連名称 | X.Q. Wang et al 2021 Nucl. Fusion 61 036021 | |||||
関連サイト | ||||||
識別子タイプ | DOI | |||||
関連識別子 | https://doi.org/10.1088/1741-4326/abd3ec | |||||
関連名称 | Publisher version | |||||
著者版フラグ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
NAIS | ||||||
13506 |