Item type |
学術雑誌論文 / Journal Article(1) |
公開日 |
2024-06-17 |
タイトル |
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言語 |
en |
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タイトル |
Controlling three-dimensional magnetic island appearance with external current drive in the Chinese first quasi-axisymmetric stellarator |
言語 |
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言語 |
eng |
キーワード |
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言語 |
en |
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主題Scheme |
Other |
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主題 |
quasi-axisymmetric stellarator |
キーワード |
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言語 |
en |
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主題Scheme |
Other |
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主題 |
magnetic islands |
キーワード |
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言語 |
en |
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主題Scheme |
Other |
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主題 |
external current drives |
キーワード |
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言語 |
en |
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主題Scheme |
Other |
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主題 |
CFQS |
資源タイプ |
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資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
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資源タイプ |
journal article |
著者 |
SU, X.
WANG, Xian-Qu
XU, Yuhong
OKAMURA, Shoichi
SHIMIZU, Akihiro
ISOBE, Mitsutaka
CHENG, Jun
LIU, Haifeng
HUANG, Jie
ZHANG, Xin
LIU, Hai
LUO, Y.
SHEN, J. F.
HU, Jun
TANG, Changjian
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抄録 |
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内容記述タイプ |
Abstract |
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内容記述 |
In this study, the impact of a non-inductive current drive, such as electron cyclotron current drive, on three-dimensional (3D) magnetic islands in the high-β equilibrium of the Chinese First Quasi-axisymmetric Stellarator (CFQS) was investigated using the HINT code. In the case of a high-β equilibrium (volume-averaged plasma beta <β> ∼ 0.74% and bootstrap current Ibs∼ 24.5 kA), two m/n = 4/2 rational surfaces with large magnetic islands develop (Wang et al 2021 Nucl. Fusion61 036021). The islands can be effectively controlled using a constant or a Gaussian current density profile, depending on the direction and amplitude of the current. With a constant current density amounting to a total current of −6 kA, the rotational transform profile can be modified such that the m/n = 4/2 rational surface is eliminated and the island is suppressed. For the Gaussian current density profile, the magnetic island can also be suppressed using a smaller total current of ∼−2 kA to adjust the iota profile. These results suggest that in the CFQS stellarator, the external current drive might be an efficient approach for controlling 3D magnetic islands and consequently improving plasma confinement. |
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言語 |
en |
書誌情報 |
en : Nuclear Fusion
巻 64,
号 7,
p. 076023,
発行日 2024-06-03
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出版者 |
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言語 |
en |
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出版者 |
IOP Publishing |
ISSN |
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収録物識別子タイプ |
ISSN |
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収録物識別子 |
1741-4326 |
DOI |
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関連タイプ |
isIdenticalTo |
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識別子タイプ |
DOI |
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関連識別子 |
10.1088/1741-4326/ad4db7 |
権利 |
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言語 |
en |
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権利情報 |
© 2024 The Author(s). Original content from this work may be used under the terms of the Creative Commons Attribution 4.0 licence. 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 |
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言語 |
en |
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関連名称 |
X. Su et al 2024 Nucl. Fusion 64 076023 |
関連サイト |
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識別子タイプ |
DOI |
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関連識別子 |
http://doi.org/10.1088/1741-4326/ad4db7 |
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関連名称 |
Publisher version |
著者版フラグ |
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出版タイプ |
VoR |
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出版タイプResource |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |
NAIS |
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14290 |