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Characteristics of electron internal transport barrier in Heliotron J

http://hdl.handle.net/10655/00012801
http://hdl.handle.net/10655/00012801
9b14c673-a263-4d79-aeb3-be3783c0a0c9
名前 / ファイル ライセンス アクション
Plasma_Phys.Control.Fusion59_pp055013.pdf Plasma_Phys.Control.Fusion59_pp055013 (509.3 kB)
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Item type 学術雑誌論文 / Journal Article(1)
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

Kenmochi, Naoki

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MINAMI, Takashi

× MINAMI, Takashi

MINAMI, Takashi

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Takahashi, C.

× Takahashi, C.

Takahashi, C.

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Mochizuki, S.

× Mochizuki, S.

Mochizuki, S.

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Nishioka, K.

× Nishioka, K.

Nishioka, K.

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Kobayashi, S.

× Kobayashi, S.

Kobayashi, S.

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NAGASAKI, Kazunobu

× NAGASAKI, Kazunobu

NAGASAKI, Kazunobu

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NAKAMURA, Y.

× NAKAMURA, Y.

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
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
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Cite as

Kenmochi, Naoki, MINAMI, Takashi, Takahashi, C., Mochizuki, S., Nishioka, K., Kobayashi, S., NAGASAKI, Kazunobu, NAKAMURA, Y., 2017, Characteristics of electron internal transport barrier in Heliotron J: IOP Publishing, 055013– p.

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