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Electron heat diffusivity in radially-bounded ergodic region of toroidal plasma
http://hdl.handle.net/10655/00012483
http://hdl.handle.net/10655/00012483d5617614-fc9d-4317-a95e-2fe8b17197d7
名前 / ファイル | ライセンス | アクション |
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NF_58_1_Kanno (1.4 MB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2019-07-10 | |||||
タイトル | ||||||
タイトル | Electron heat diffusivity in radially-bounded ergodic region of toroidal plasma | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | resonant magnetic perturbation | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | heat diffusion | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | drift-kinetic simulation | |||||
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 |
KANNO, Ryotaro
× KANNO, Ryotaro× NUNAMI, Masanori× SATAKE, Shinsuke× MATSUOKA, Seikichi× TAKAMURA, Hisanori |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Drift-kineticδ f simulations are performed to investigate effect of ergodic field lines caused by resonant magnetic perturbations (RMPs) on radial heat diffusivity of electrons in the edge region of toroidal plasma of collisionality V* 〜0:1. The following is assumed in the simulations. The ergodic region is bounded radially on both sides by closed magnetic surfaces. The pressure gradient remains nonzero in the ergodic region because of an incomplete flattening of the pressure profile, and the characteristic scale length of the pressure gradient is of larger order than the overlapping width of the neighbouring magnetic islands. It is found in the quasi-steady state of δf that the electron heat diffusivity is of smaller order than the theoretical estimate derived by the Rechester-Rosenbluth model (Rechester A.B. and Rosenbluth M.N. 1978Phys.Rev. Lett.4038). The radial heat conduction is dominated not only by parallelmotions along the ergodic field lines but also by trapped particle motions generated by the RMP field. The contribution of the trapped particles reduces the radial heat conduction enhanced by the parallel motions. | |||||
書誌情報 |
Nuclear Fusion en : Nuclear Fusion 巻 28, 号 1, p. 016033, 発行日 2018 |
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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/aa94ed/meta | |||||
関連名称 | Publisher Ver. | |||||
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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