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Simulation Study of Energetic Ion Transport due to Alfvén Eigenmodes in LHD Plasma
http://hdl.handle.net/10655/6356
http://hdl.handle.net/10655/63560350b646-72c6-4bc2-9456-e261cf9716f7
名前 / ファイル | ライセンス | アクション |
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pfr2008_03-S1074.pdf (810.8 kB)
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Item type | 学術雑誌論文 / Journal Article_02(1) | |||||
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公開日 | 2011-03-28 | |||||
タイトル | ||||||
タイトル | Simulation Study of Energetic Ion Transport due to Alfvén Eigenmodes in LHD Plasma | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | energetic ion transport | |||||
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 | Poincar? plot | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | LHD | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | neutral particle analyzer | |||||
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 |
TODO, Yasushi
× TODO, Yasushi× NAKAJIMA, Noriyoshi× OSAKABE, Masaki× YAMAMOTO, Satoshi× SPONG, Donald A. |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | The creation of holes and clumps in an energetic ion energy spectrum associated with Alfv?n eigenmodes was examined using the neutral particle analyzer (NPA) on the LHD shot #47645. The difference in slowingdown times between the holes and clumps suggested that the energetic ions were transported over 10% of the plasma minor radius. The spatial profile and frequency of the Alfv?n eigenmodes were analyzed with the AE3D code. The phase space structures of the energetic ions on the NPA line-of-sight were investigated with Poincar? plots, where an oscillating Alfv?n eigenmode was employed for each plot. The phase space regions trapped by the Alfv?n eigenmodes appeared as islands in the Poincar? plots. The radial width of the islands corresponded to the transport distance of the energetic ions. Since island width depends on Alfv?n eigenmode amplitude, it was found that Alfv?n eigenmodes with amplitude δBr/B ? 10-3 transported energetic ions over 10% of the minor radius. | |||||
書誌情報 |
en : Plasma and Fusion Research 巻 Vol.3, p. S1074-1 -S1074-4, 発行日 2008-01-01 |
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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.3.S1074 | |||||
権利 | ||||||
権利情報 | ? 2008 The Japan Society of Plasma Science and Nuclear Fusion Research |