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Edge turbulence and anomalous transport in fusion plasmas

C Hidalgo1995年Plasma Physics and Controlled FusionIF 2.2出版社

A view of the latest experimental results and progress in the characterization and understanding of edge turbulence is given. The development of new fluctuation analysis techniques has provided a new bridge between experimental measurements and theoretical turbulence models. At the same time, the characterization of fluctuation and turbulent transport has stimulated new experimental developments in the measurement of electron temperature fluctuations; it has been shown that substantial levels of electron temperature fluctuations are present in the boundary region of magnetically confined plasmas. Several driving (curvature, atomic physics, . . .) and damping (electric field) mechanisms of the edge turbulence have been investigated. The development of methods to modify and control plasma turbulence and confinement appears as a very promising area of research. Recent results emphasize the importance of comparative studies between the structure of the turbulence in toroidal confinement systems to test critically edge turbulence models.

日本語訳

周辺乱流の特性評価と理解における最新の実験結果と進展について概観する。新たな揺動解析手法の開発により、実験計測と理論的乱流モデルの間の新たな橋渡しが実現された。同時に、揺動と乱流輸送の特性評価は、電子温度揺動の計測における新たな実験的発展を促進し、磁場閉じ込めプラズマの境界領域において、電子温度揺動が有意なレベルで存在することが示された。周辺乱流の駆動機構(曲率、原子物理など)および減衰機構(電場)について、さまざまな観点から研究が進められている。乱流とプラズマ閉じ込めを改変・制御する手法の開発は、極めて有望な研究分野として位置づけられる。最近の研究成果は、トロイダル閉じ込め装置における乱流構造の比較研究の重要性を強調しており、これにより周辺乱流モデルの厳密な検証が可能となる。

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Edge turbulenceAnomalous transport
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