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Low-frequency electromagnetic fluctuations in thermal-equilibrium, multi-ion-species plasmas
http://hdl.handle.net/2237/7057
dfe55b71-2ee3-4d7e-a829-1bb51cd941c8
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 | 2006-10-25 | |||||
タイトル | ||||||
タイトル | Low-frequency electromagnetic fluctuations in thermal-equilibrium, multi-ion-species plasmas | |||||
著者 |
Toida, Mieko
× Toida, Mieko× Yoshiya, Takashi× Ohsawa, Yukiharu |
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権利 | ||||||
権利情報 | Copyright (2005) American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. | |||||
抄録 | ||||||
内容記述 | Low-frequency electromagnetic thermal fluctuations propagating perpendicular to a magnetic field are theoretically studied with attention to the effect of multiple ion species. In the frequency regime lower than the lower hybrid frequency, there exist three types of modes; magnetosonic mode with ω⋍kγ_A, ion cyclotron modes with ω⋍nΩ_i, and heavy-ion cutoff modes with frequencies slightly higher than the ion-ion hybrid resonance frequencies. The power spectra of magnetic fluctuations due to these modes are obtained analytically and numerically. In a single-ion-species plasma, the magnetosonic mode is an overwhelmingly dominant mode. The autocorrelation function C_k(τ) is thus given by a cosine function with a constant amplitude. In a multi-ion-species plasma, however, the amplitudes of the heavy-ion cutoff modes can be comparable to that of the magnetosonic mode. Therefore, C_k(τ)is initially damped, and its recurrence time is extremely long. | |||||
内容記述タイプ | Abstract | |||||
内容記述 | ||||||
内容記述 | 8pages | |||||
内容記述タイプ | Other | |||||
出版者 | ||||||
出版者 | American Institute of Physics | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプresource | http://purl.org/coar/resource_type/c_6501 | |||||
タイプ | journal article | |||||
DOI | ||||||
関連識別子 | ||||||
識別子タイプ | DOI | |||||
関連識別子 | http://dx.doi.org/10.1063/1.2089927 | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 1070-664X | |||||
書誌情報 |
Physics of Plasmas 巻 12, 号 10, p. 102306-102306, 発行日 2005-10 |
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フォーマット | ||||||
application/pdf | ||||||
著者版フラグ | ||||||
値 | publisher | |||||
URI | ||||||
識別子 | http://hdl.handle.net/2237/7057 | |||||
識別子タイプ | HDL |