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Overview of coordinated spherical tokamak research in Japan
http://hdl.handle.net/10655/00013584
http://hdl.handle.net/10655/000135845a9d3d2b-bc61-4e3f-bf65-262a7feb4ac7
名前 / ファイル | ライセンス | アクション |
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2023-03-29 | |||||
タイトル | ||||||
タイトル | Overview of coordinated spherical tokamak research in Japan | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | spherical tokamak | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | radiofrequency current drive | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | steady-state operation | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | magnetic reconnection | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | plasma start-up | |||||
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 |
TAKASE, Yuichi
× TAKASE, Yuichi× EJIRI, Akira× FUJITA, Takaaki× HANADA, Kazuaki× IDEI, Hiroshi× NAGATA, Masayoshi× ONCHI, Takumi× ONO, Yasushi× TANAKA, Hitoshi× TSUJII, Naoto× UCHIDA, M.× YASUDA, K.× KASAHARA, Hiroshi× MURAKAMI, Sadayoshi× TAKEIRI, Yasuhiko× TODO, Yasushi× TSUJI-IIO, Shunji× KAMADA, Yutaka |
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著者ID | ||||||
内容記述タイプ | Other | |||||
内容記述 | 0000-0002-4846-5267 | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Spherical tokamak (ST) research in Japan has produced many innovative results: (i) plasma start-up to Ip > 70 kA was achieved by electron cyclotron wave (ECW) with N∥ = 0.75, while electron heating to Te > 500 eV was achieved with N∥ = 0.26 on QUEST. (ii) The radiofrequency (RF)-induced transport model was combined with the x-ray emission model, and extended magnetohydrodynamics equilibrium with kinetic electrons was developed to interpret fast-electron-dominated lower hybrid wave sustained plasmas on TST-2. (iii) Density as high as 30 times the cutoff density was achieved by electron Berstein wave current drive combined with electron beam injection on LATE. (iv) Multiple plasmoids formed by tearing instability in the elongated current sheet were observed, and flux closure and ion heating by plasmoid-mediated fast magnetic reconnection were observed on HIST. (v) Optimization of ECW-assisted inductive start-up with a vertical field with positive decay index was performed on TST-2. (vi) Stabilization of the vertical displacement event by a set of upper and lower helical field coils was demonstrated on TOKASTAR-2. (vii) A 6 h discharge was achieved by cool-down of the center stack cover on QUEST, where the plasma duration limit was consistent with the wall saturation time estimated by modeling. (viii) Extension of ion heating by plasma merging was achieved on TS-3U, TS-4U, UTST, MAST, and ST40. | |||||
書誌情報 |
Nuclear Fusion 巻 62, 号 4, p. 042011, 発行日 2022-02-14 |
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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 | 0029-5515 | |||||
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/ac29cf | |||||
権利 | ||||||
権利情報 | This is the Accepted Manuscript version of an article accepted for publication in Nuclear Fusion. | |||||
権利 | ||||||
権利情報 | IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. | |||||
権利 | ||||||
権利情報 | The Version of Record is available online at https://doi.org/10.1088/1741-4326/ac29cf. | |||||
情報源 | ||||||
関連名称 | Y. Takase et al 2022 Nucl. Fusion 62 042011 | |||||
関連サイト | ||||||
識別子タイプ | DOI | |||||
関連識別子 | https://doi.org/10.1088/1741-4326/ac29cf | |||||
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 | ||||||
13346 |