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Characteristics of electron internal transport barrier in Heliotron J
http://hdl.handle.net/10655/00012801
http://hdl.handle.net/10655/000128019b14c673-a263-4d79-aeb3-be3783c0a0c9
名前 / ファイル | ライセンス | アクション |
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Plasma_Phys.Control.Fusion59_pp055013 (509.3 kB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2021-12-21 | |||||
タイトル | ||||||
タイトル | Characteristics of electron internal transport barrier in Heliotron J | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Heliotron J | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | electron internal transport barrier | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | plasma transport | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | plasma confinement | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | magnetic confinement | |||||
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 |
Kenmochi, Naoki
× Kenmochi, Naoki× MINAMI, Takashi× Takahashi, C.× Mochizuki, S.× Nishioka, K.× Kobayashi, S.× NAGASAKI, Kazunobu× NAKAMURA, Y. |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | The formation of an electron internal transport barrier (eITB) has been observed for the first time with centrally focused electron cyclotron heating (ECH) microwaves injected into plasma in Heliotron J. When the heating power per electron density (${P}_{\mathrm{ECH}}/{\bar{n}}_{{\rm{e}}}$) exceeds a threshold of $250\times {10}^{-19}\,\mathrm{kW}\,{{\rm{m}}}^{3}$, transient increases of both the central Te and the core Te gradients are observed. A neoclassical (NC) calculation using the Sugama–Nishimura moment method predicts that the large positive radial electric field (Er) is formed in the core region. Heat transport analysis shows a significant reduction of the effective electron thermal diffusivity in the plasma with the eITB related to that without the eITB. The large gap between the experimentally obtained effective thermal diffusivity and the NC thermal diffusivity suggests that the suppression of anomalous transport contributes to the core improved confinement of the eITB plasma. The electron cyclotron emission measurement shows both the transient increase and the hysteresis phenomena during the eITB formation. | |||||
書誌情報 |
Plasma Physics and Controlled Fusion 巻 59, 号 5, p. 055013, 発行日 2017-03-27 |
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出版者 | ||||||
出版者 | IOP Publishing | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 13616587 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA12472556 | |||||
DOI | ||||||
関連タイプ | isVersionOf | |||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1088/1361-6587/aa63cf | |||||
権利 | ||||||
権利情報 | This is the Accepted Manuscript version of an article accepted for publication in Plasma Physics and Controlled 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/10.1088/1361-6587/aa63cf. | |||||
情報源 | ||||||
関連名称 | Citation N Kenmochi et al 2017 Plasma Phys. Control. Fusion 59 055013 | |||||
関連サイト | ||||||
識別子タイプ | DOI | |||||
関連識別子 | https://doi.org/10.1088/1361-6587/aa63cf | |||||
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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