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Experimental analysis of self-organized structure and transport on the magnetospheric plasma device RT-1
http://hdl.handle.net/10655/00012778
http://hdl.handle.net/10655/00012778223e0a0a-7fe3-47ff-8426-620fc7aa171c
名前 / ファイル | ライセンス | アクション |
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Nucl.Fusion59_pp096005 (810.1 kB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2021-12-17 | |||||
タイトル | ||||||
タイトル | Experimental analysis of self-organized structure and transport on the magnetospheric plasma device RT-1 | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | particle confinement | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | transport | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | dipole field | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | advanced fusion | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | magnetosphere | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | coherence imaging spectroscopy | |||||
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 |
NISHIURA, Masaki
× NISHIURA, Masaki× yoshida, Zensho× Kenmochi, Naoki× SUGATA, T.× NAKAMURA, K.× MORI, T.× Katsura, S.× Shirohata, K.× Howard, J. |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Dipole plasma exhibits strong heterogeneities in field strength, density, temperature and other parameters, while maintaining a holistic balance. Our study of the internal structures reveals the fundamental self-organizing mechanisms operating in their simplest realization (as commonly observed in astronomical systems). Three new findings are reported from the RT-1 experiment. The creation of a high-energy electron core (similar to the radiation belts in planetary magnetospheres) is observed for the first time in a laboratory system. High-energy electrons (3–15 keV), produced by electron cyclotron heating, accumulate in a 'belt' located in the low-density region (high-beta value ~1 is obtained by increasing the high-energy component up to 70% of the total electrons). The dynamical process of the 'up-hill diffusion' (a spontaneous mechanism of creating density gradient) has been analyzed by perturbing the density by gas injection. The spontaneous density formation in the laboratory magnetosphere elucidates the self-organized plasma transport relevant to a planetary magnetosphere. The coherence-imaging spectroscopy visualized the two-dimensional profiles of ion temperature and flow velocity in the ion cyclotron resonance frequency heating. The ion temperature and flow were enhanced globally, and particularly along the magnetic field lines near the levitation magnet. These results advance our understanding of transport and self-organization not only in dipole plasmas, but in general magnetic confinement systems relevant to fusion plasmas. | |||||
書誌情報 |
Nuclar Fusion 巻 59, 号 9, p. 096005, 発行日 2019-07-17 |
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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 | 00295515 | |||||
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/ab259a | |||||
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 doi.org/10.1088/1741-4326/ab259a | |||||
情報源 | ||||||
関連名称 | M. Nishiura et al 2019 Nucl. Fusion 59 096005 | |||||
関連サイト | ||||||
識別子タイプ | DOI | |||||
関連識別子 | https://doi.org/10.1088/1741-4326/ab259a | |||||
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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