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Precession drift reversal and rapid transport of trapped energetic particles due to an energetic particle driven instability in the Large Helical Device
http://hdl.handle.net/10655/00012675
http://hdl.handle.net/10655/00012675f62c6f01-03cc-4998-81fe-97f3891ece76
名前 / ファイル | ライセンス | アクション |
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Phys.Plasmas28_pp080701 (1.8 MB)
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VoR_Phys.Plasmas_28_080701 (2.2 MB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2021-11-24 | |||||
タイトル | ||||||
タイトル | Precession drift reversal and rapid transport of trapped energetic particles due to an energetic particle driven instability in the Large Helical Device | |||||
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 |
IDOUAKASS, Malik
× IDOUAKASS, Malik× TODO, Yasushi× WANG, Hao× WANG, Jialei× SEKI, Ryosuke× SATO, Masahiko |
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著者ID | ||||||
内容記述タイプ | Other | |||||
内容記述 | 0000-0001-8626-2770 | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Energetic particle transport by a magnetohydrodynamic (MHD) instability driven by helically trapped energetic particles is studied for a high-performance Large Helical Device plasma with kinetic-MHD hybrid simulations. It is observed in the simulation that an MHD mode with poloidal/toroidal mode numbers ????/????=2/1 driven by helically trapped energetic particles causes a significant redistribution of perpendicular energetic particle pressure profile. The frequency of the MHD mode decreases rapidly at the saturation of the instability and changes sign, which indicates a reversal of the mode propagation direction. It is found that the helically trapped energetic particles interacting strongly with the MHD mode change the precession drift direction at the same time as the reversal of the MHD mode propagation direction. The helically trapped energetic particles with the precession drift reversal are transported rapidly in the radially outward direction before the original precession drift direction is recovered. The precession drift reversal and the outward transport are caused by interaction with the electric field of the MHD mode. The vast majority of trapped energetic particles which interact strongly with the MHD mode experience precession drift reversal, leading to a significant redistribution of the perpendicular energetic particle pressure profile. Numerical computations were performed on the Plasma Simulator (NEC SX-Aurora TSUBASA) of NIFS with the support and under the auspices of the NIFS Collaboration Research program (No. NIFS20KNST169), the JFRS-1 of the International Fusion Energy Research Centre, and the Supercomputer Fugaku of the RIKEN Center for Computational Science (Project ID: hp210178). This work was supported by MEXT as Program for Promoting Research studies on the Supercomputer Fugaku (Exploration of burning plasma confinement physics). |
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書誌情報 |
Physics of Plasmas 巻 28, p. 080701, 発行日 2021-08-05 |
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出版者 | ||||||
出版者 | AIP Publication | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 1070664X | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA10987555 | |||||
DOI | ||||||
関連タイプ | isVersionOf | |||||
識別子タイプ | DOI | |||||
関連識別子 | https://doi.org/10.1063/5.0059683 | |||||
権利 | ||||||
権利情報 | This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in Physics of Plasmas 28, 080701 (2021); and may be found at https://aip.scitation.org/doi/abs/10.1063/5.0059683. | |||||
権利 | ||||||
権利情報 | Copyright 2021 Author(s). This article is distributed under a Creative Commons Attribution (CC BY) License. | |||||
情報源 | ||||||
関連名称 | Physics of Plasmas 28, 080701 (2021) | |||||
関連サイト | ||||||
識別子タイプ | URI | |||||
関連識別子 | https://aip.scitation.org/doi/abs/10.1063/5.0059683 | |||||
関連名称 | Published 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 | |||||
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