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Physical Mechanism Determining the Radial Electric Field and its Radial Structure in a Toroidal Plasma
http://hdl.handle.net/10655/152
http://hdl.handle.net/10655/1525e2506dd-76ac-4023-a8ec-469280a45637
名前 / ファイル | ライセンス | アクション |
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NIFS-313.pdf (1.8 MB)
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Item type | 研究報告書 / Research Paper(1) | |||||
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公開日 | 2009-02-26 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Physical Mechanism Determining the Radial Electric Field and its Radial Structure in a Toroidal Plasma | |||||
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_18ws | |||||
資源タイプ | research report | |||||
著者 |
Ida, K.
× Ida, K.× Miura, Y.× Itoh, S -I.× Hofmann, J.V.× Fukuyama, A.× Hidekuma, S.× Sanuki, H.× Idei, H.× Yamada, H.× Iguchi, H.× Itoh, K. |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Radial structures of plasma rotation and radial electric field are experimentally studied in tokamak, heliotron/torsatron and stellarator devices. The perpendicular and parallel viscosities are measured. The parallel viscosity, which is dominant in determining the toroidal velocity in heliotron/torsatron and stellarator devices, is found to be neoclassical. On the other hand, the perpendicular viscosity, which is dominant in dictating the toroidal rotation in tokamaks, is anomalous. Even without external momentum input, both a plasma rotation and a radial electric field exist in tokamaks and heliotrons/torsatrons. The observed profiles of the radial electric field do not agree with the theoretical prediction based on neoclassical transport. This is mainly due to the existence of anomalous perpendicular viscosity. The shear of the radial electric field improves particle and heat transport both in bulk and edge plasma regimes of tokamaks. | |||||
書誌情報 |
en : Research Report NIFS-Series 発行日 1994-08-01 |
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報告書番号 | ||||||
NIFS-313 | ||||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0915-633X |