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Isotope effects in self-organization of internal transport barrier and concomitant edge confinement degradation in steady-state LHD plasmas
http://hdl.handle.net/10655/00012523
http://hdl.handle.net/10655/00012523897fbd27-6e12-469a-b326-bc6e6f6878b7
名前 / ファイル | ライセンス | アクション |
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Sci.Rep9_pp15913 (1.6 MB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2021-06-28 | |||||
タイトル | ||||||
タイトル | Isotope effects in self-organization of internal transport barrier and concomitant edge confinement degradation in steady-state LHD 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 | |||||
著者 |
Kobayashi, T.
× Kobayashi, T.× Takahashi, H.× Ngaoka, K.× Sasaki, M.× Nakata, M.× Yokoyama, M.× Seki, R.× Yoshimura, M.× Ida, K |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | The isotope effect, which has been a long-standing mystery in the turbulent magnetically confined plasmas, is the phenomena that the plasma generated with heavier hydrogen isotope show a mitigated transport. This is on the contrary to what is predicted with the simple scaling theory, in which the heavier ions easily diffuse because of its larger gyro-radius. Thanks to the newly developed analysis method and a comprehensive parameter scan experiment in the steady-state plasmas in the Large Helical Device (LHD), the isotope effect was clearly observed in the self-organized internal transport barrier (ITB) structure for the first time. Comparing the ITB intensity in deuterium (D) and hydrogen (H) plasmas, two distinct hydrogen isotope effects are found: stronger ITB is formed in D plasmas and a significant edge confinement degradation accompanied by the ITB formation emerges in H plasmas. This observation sheds light on a new aspect of the turbulent plasmas regarding how the basic properties of the fluid material affect the turbulent structure formation in the open-system. | |||||
書誌情報 |
Scientific Reports 巻 9, p. 15913, 発行日 2019-11-04 |
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出版者 | ||||||
出版者 | Nature Research | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 2045-2322 | |||||
DOI | ||||||
関連タイプ | isIdenticalTo | |||||
識別子タイプ | DOI | |||||
関連識別子 | https://doi.org/10.1038/s41598-019-52271-w | |||||
関連サイト | ||||||
識別子タイプ | DOI | |||||
関連識別子 | https://doi.org/10.1038/s41598-019-52271-w | |||||
関連名称 | Publisher version | |||||
著者版フラグ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
NAIS | ||||||
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