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Reversed field pinch: recent results

S C Prager1992年Plasma Physics and Controlled FusionIF 2.2出版社

The understanding of fluctuations and transport in the reversed field pinch (RFP) has been enhanced substantially. In this summary of results, the authors focus upon those which are not only useful for RFP understanding, but which are new to fusion plasma physics as a whole. Hence, in the area of fluctuations they report on new measurements of current density fluctuations, flow velocity fluctuations, and radial dependence of the wave vectors. These measurements all support the interpretation of the low frequency fluctuations as tearing modes, and show that high frequency fluctuations are localized, resonant turbulence. Three wave nonlinear coupling of the tearing modes have been measured directly using bispectral analysis of magnetic fluctuations. Qualitative agreement is obtained with predictions of nonlinear MHD.

日本語訳

逆転磁場ピンチ(RFP)におけるゆらぎと輸送の理解は、大幅に進展した。本結果の概要において、著者らは、RFPの理解に有用であるだけでなく、核融合プラズマ物理学全体として新規であるものに焦点を当てている。したがって、ゆらぎの分野において、彼らは電流密度ゆらぎ、流れ速度ゆらぎ、および波動ベクトルの動径依存性に関する新たな測定結果を報告している。これらの測定結果はすべて、低周波ゆらぎをテアリングモードとして解釈することを支持し、高周波ゆらぎが局在化した共鳴性乱流であることを示している。テアリングモードの三波非線形結合は、磁気ゆらぎのバイスペクトル解析を用いて直接測定された。非線形MHDの予測との定性的な一致が得られている。

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Reversed field pinch
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