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PIC Simulation of Energetic-ion Injection Effects on Nonlinear Development of Lower Hybrid Wave Instabilities
http://hdl.handle.net/10655/00013106
http://hdl.handle.net/10655/00013106d7d068bc-a128-414a-a64c-dbcaf11e28f8
名前 / ファイル | ライセンス | アクション |
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repository_13256_paper (3.8 MB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2022-04-28 | |||||
タイトル | ||||||
タイトル | PIC Simulation of Energetic-ion Injection Effects on Nonlinear Development of Lower Hybrid Wave Instabilities | |||||
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 |
KOTANI, Tsubasa
× KOTANI, Tsubasa× TOIDA, Mieko× MORITAKA, Toseo× TAGUCHI, Satoshi |
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著者ID | ||||||
内容記述タイプ | Other | |||||
内容記述 | 0000-0001-8894-3430 | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | By means of one-dimensional, electromagnetic, particle-in-cell simulations, we investigate the nonlinear development of lower hybrid wave (LHW) instabilities driven by energetic ions with a ring-like velocity distribution, paying special attention to the effects of energetic-ion injection. We consider the LHWs propagating perpendicular to the magnetic field in a collisionless plasma into which energetic ions with a speed smaller than the Alfvén speed are continuously injected. We found that the LHWs excited by the energetic ions can maintain large amplitudes for a long time because the continuous injection causes the steep gradient of the energetic-ion velocity distribution. Furthermore, as time advances, the wavenumber of excited modes become larger. Because of this nonlinear development of the LHWs, the energy transfer from the energetic ions to bulk ions through the LHWs is enhanced. As the injection speed increases, a wide wavenumber range of the modes are excited and the bulk-ion energy change increases. | |||||
書誌情報 |
Journal of the Physical Society of Japan 巻 90, 号 12, p. 124501, 発行日 2021-11-12 |
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出版者 | ||||||
出版者 | Journal of the Physical Society of Japan (JPSJ) | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0031-9015 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA00704814 | |||||
DOI | ||||||
関連タイプ | isVersionOf | |||||
識別子タイプ | DOI | |||||
関連識別子 | https://doi.org/10.7566/JPSJ.90.124501 | |||||
権利 | ||||||
権利情報 | ©2021 The Physical Society of Japan | |||||
情報源 | ||||||
関連名称 | Journal of the Physical Society of Japan, 90, 124501 (2021) 10.7566/JPSJ.90.124501 | |||||
関連サイト | ||||||
識別子タイプ | DOI | |||||
関連識別子 | https://doi.org/10.7566/JPSJ.90.124501 | |||||
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 | ||||||
13256 |