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Simulation Study of Alfv?n-Eigenmode-Induced Energetic Ion Transport in LHD
http://hdl.handle.net/10655/10166
http://hdl.handle.net/10655/10166768104cc-e959-4baf-89b0-60cd0a29b8d8
名前 / ファイル | ライセンス | アクション |
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pfr2013_08-2403090.pdf (3.2 MB)
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Item type | 学術雑誌論文 / Journal Article_02(1) | |||||
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公開日 | 2013-10-21 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Simulation Study of Alfv?n-Eigenmode-Induced Energetic Ion Transport in LHD | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Alfv?n eigenmode | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | energetic ion | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | three-dimensional equilibrium | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | hybrid simulation, particle-in-cell method | |||||
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 |
NISHIMURA, Seiya
× NISHIMURA, Seiya× TODO, Yasushi× SPONG, Donald A.× SUZUKI, Yasuhiro× NAKAJIMA, Noriyoshi |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | The interaction between toroidal Alfv?n eigenmode (TAE) and energetic ions in the Large Helical Device (LHD) is investigated using a reduced version of the MEGA code that implements a realistic equilibrium magnetic field with the HINT code and corresponding TAE profile with the AE3D code. In simulations, the linear growth rate of TAE amplitude is proportional to energetic ion density; consequently, the nonlinear saturation level of the TAE amplitude is enhanced by the increase in the energetic ion density. Energy transfer analysis is performed to clarify destabilization and saturation mechanisms of the TAE and to identify resonant energetic ions. An analysis of test particles in the electromagnetic field perturbed by the TAE shows that the magnitude of fluctuations in the energetic ion orbits is proportional to the square root of the TAE amplitude. Our results qualitatively reproduce the radial transport of energetic ions by the TAE in the LHD. | |||||
書誌情報 |
en : Plasma and Fusion Research 巻 Vol.8, p. 2403090-1- 2403090-6, 発行日 2013-06-01 |
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出版者 | ||||||
出版者 | プラズマ・核融合学会 | |||||
DOI | ||||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1585/pfr.8.2403090 | |||||
権利 | ||||||
権利情報 | ? 2013 The Japan Society of Plasma Science and Nuclear Fusion Research |