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Study of slowing down mechanism of locked-mode-like instability in helical plasmas
http://hdl.handle.net/10655/00012868
http://hdl.handle.net/10655/000128682ea06a40-1fe9-4c06-81d3-5a2d6cc037f4
名前 / ファイル | ライセンス | アクション |
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Nucl.Fusion59_pp066036 (3.5 MB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2021-12-28 | |||||
タイトル | ||||||
タイトル | Study of slowing down mechanism of locked-mode-like instability in helical plasmas | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | MHD instability | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | locked-mode-like instability | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | low magnetic shear | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | mode rotation | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | LHD | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | external RMP | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | locked mode | |||||
キーワード | ||||||
主題Scheme | Other | |||||
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 |
TAKEMURA, Yuki
× TAKEMURA, Yuki× WATANABE, Kiyomasa× SAKAKIBARA, Satoru× OHDACHI, Satoshi× NARUSHIMA, Yoshiro× IDA, Katsumi× YOSHINUMA, Mikiro× TSUCHIYA, Hayato× TOKUZAWA, Tokihiko× YAMADA, Ichihiro× LHD, Experiment Group |
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著者ID | ||||||
内容記述タイプ | Other | |||||
内容記述 | 0000-0003-3754-897X | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | The mode slowing down mechanism of the locked-mode-like instability without a large magnetic island is investigated, based on the LHD experimental analysis. The mode frequency coincides with E × B rotation frequency at the resonant surface and the slowing down is caused by two processes. One is the resonant surface moving to the small E × B rotation frequency region and the other is the slowing down of the E × B rotation frequency near the resonant surface. Both processes are almost the same as those of the locked-mode-like instability with a large magnetic island. The results suggest that the slowing down occurs even though the precursor does not have a large magnetic island. However, when the external RMP is imposed, the mode frequency in the slowing down phase sometimes does not coincide with the E × B rotation frequency. Moreover, the mode amplitude during the slowing down phase increases with the decrease of the mode frequency both with and without the imposed external RMP, which suggests that the instability growth in the slowing down phase is more strongly related to the mode frequency than the E × B rotation frequency because the mode sometimes does not rotate with the E × B rotation. | |||||
書誌情報 |
Nuclear Fusion 巻 59, 号 6, p. 066036, 発行日 2019-05-17 |
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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 | 10.1088/1741-4326/ab169f | |||||
権利 | ||||||
権利情報 | This is the Accepted Manuscript version of an article accepted for publication in Nuclear Fusion. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The Version of Record is available online at https://doi.org/10.1088/1741-4326/ab169f. | |||||
情報源 | ||||||
関連名称 | Y. Takemura et al 2019 Nucl. Fusion 59 066036 | |||||
関連サイト | ||||||
識別子タイプ | DOI | |||||
関連識別子 | https://doi.org/10.1088/1741-4326/ab169f | |||||
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 | ||||||
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