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Impact of rotation and ion diamagnetic drift on MHD stability at edge pedestal in quiescent H-mode plasmas
https://repo.qst.go.jp/records/80460
https://repo.qst.go.jp/records/80460553e9386-fbc4-4117-9130-79737c75af1b
Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2020-09-11 | |||||
タイトル | ||||||
タイトル | Impact of rotation and ion diamagnetic drift on MHD stability at edge pedestal in quiescent H-mode plasmas | |||||
言語 | ||||||
言語 | eng | |||||
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 | |||||
アクセス権 | ||||||
アクセス権 | metadata only access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
著者 |
Aiba, Nobuyuki
× Aiba, Nobuyuki× . Chen, X× H. Osborne, T.× Honda, Mitsuru× H. Burrell, K.× B. Snyder, P.× Aiba, Nobuyuki× Honda, Mitsuru |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | MHD stability at edge pedestal in a QH-mode plasma in DIII-D was analyzed by taking into account plasma rotation and ion diamagnetic drift effects. We have found that the coupled rotation and ion diamagnetic drift effects can stabilize a kink/peeling mode in the QH-mode plasma rotating in the direction counter to the plasma current, although it has been recognized the rotation alone destabilizes the mode regardless of its direction. The physics mechanism responsible for the stabilization was identified as reduction of the destabilizing effect by dynamic pressure through the coupling between the rotation and the ion diamagnetic drift. The coupling effect can be harnessed to both stabilize and destabilize the kink/peeling mode by switching the rotation direction, the trend which could be the reason that the QH-mode plasmas in DIII-D favor toroidal rotation counter to the plasma current direction. | |||||
書誌情報 |
Nuclear Fusion 巻 60, p. 092005-(8pp), 発行日 2020-09 |
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出版者 | ||||||
出版者 | IoP Publishing, IAEA | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0029-5515 | |||||
DOI | ||||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1088/1741-4326/ab8c66 | |||||
関連サイト | ||||||
識別子タイプ | URI | |||||
関連識別子 | https://iopscience.iop.org/article/10.1088/1741-4326/ab8c66 |