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arXiv 0904.4831physics.plasm-ph
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聚变相关等离子体边缘区的Drift-Alfven涡旋结构

Drift-Alfven vortex structures in the edge region of a fusion relevant plasma

N. Vianello, M. Spolaore, E. Martines, R. Cavazzana, G. Serianni, M. Zuin, E. Spada, V. Antoni

摘要:

边缘湍流结构通常在聚变装置中观察到,并且通常被认为是约束退化的原因。在它们的起源中,漂移阿尔芬湍流是最常见的建议之一。Drift-Alfven范式允许在各种系统中也观察到局部涡旋状结构的存在。在这里,我们提出了RFX-Mod RFP设备边缘区域存在漂移-Alfvén涡旋的证据,显示了这些结构如何导致边缘的电磁湍流及其间歇性。

英文摘要:

Edge turbulent structures are commonly observed in fusion devices and are generally believed to be responsible for confinement degradation. Among their origin Drift-Alfven turbulence is one of the most commonly suggested. Drift-Alfven paradigm allows the existence of localized vortex-like structures observed also in various systems. Here we present the evidence of the presence of drift-Alfvén vortices in the edge region of RFX-Mod RFP device, showing how these structures are responsible for electromagnetic turbulence at the edge and its intermittent nature.

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