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Self-generation of hollow current profile and tilt instability in field-reversed configuration
http://hdl.handle.net/10655/3903
http://hdl.handle.net/10655/39036ce92456-3355-4085-a6bd-8ba33523ca74
名前 / ファイル | ライセンス | アクション |
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1194 PhysPlasmas_10_145.pdf (239.9 kB)
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Item type | 学術雑誌論文 / Journal Article_02(1) | |||||
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公開日 | 2010-11-04 | |||||
タイトル | ||||||
タイトル | Self-generation of hollow current profile and tilt instability in field-reversed configuration | |||||
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 |
Ohtani, Hiroaki
× Ohtani, Hiroaki× Horiuchi, Ritoku× Sato, Tetsuya |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Two-dimensional electromagnetic particle simulation is performed to investigate the profile relaxation from a magnetohydrodynamic (MHD) equilibrium to a kinetic one and the physical property of the kinetic equilibrium in the field-reversed configuration. The radial oscillation is excited in order to relax an excess energy in the MHD equilibrium. After this profile oscillation, the system spontaneously relaxes toward a kinetic equilibrium, in which the electron current profile becomes hollow as a result of the combined effects of the gradient-B drift near the field-null line and the E×B drift generated by the ion finite Larmor radius effect near the magnetic separatrix. On the other hand, the ion current profile becomes peaked due to the effect of the ion meandering orbit near the field-null line. The stability of the obtained kinetic equilibrium against the tilt mode is also studied by means of three-dimensional full electromagnetic particle simulation. It is found that the growth rate of the tilt instability in the case of the hollow current profile and high separatrix beta value is smaller than that in the case of the peaked current profile. | |||||
書誌情報 |
en : Physics of Plasmas 巻 Vol.10, 号 Issue1, p. pp.145-156, 発行日 2003-10-01 |
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出版者 | ||||||
出版者 | American Institute of Physics | |||||
DOI | ||||||
関連タイプ | isIdenticalTo | |||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1063/1.1526703 | |||||
権利 | ||||||
権利情報 | (c) 2003 American Institute of Physics | |||||
関連サイト | ||||||
識別子タイプ | DOI | |||||
関連識別子 | https://doi.org/10.1063/1.1526703 | |||||
関連名称 | Publisher version | |||||
著者版フラグ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 |