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High-speed imaging of edge turbulence in NSTX

S.J. Zweben, R.J. Maqueda, D.P. Stotler, A. Keesee, J. Boedo, C.E. Bush, S.M. Kaye, B. LeBlanc, J.L. Lowrance, V.J. Mastrocola2004年被引用 232Nuclear FusionIF 3出版社

The two-dimensional radial vs poloidal structure and motion of edge turbulence in the National Spherical Torus Experiment (NSTX) were measured using high-speed imaging of the visible light emission from a localized neutral gas puff. Edge turbulence images are shown and analysed for Ohmic, L- and H-mode plasma conditions. The two-dimensional images often show regions of strong localized light emission known as 'blobs', which move both poloidally and radially at a typical speed of ≈105 cm s−1, and sometimes show spatially periodic features.

日本語訳

二次元の径方向対ポロイダル方向の構造と、ナショナル球状トーラス実験装置(NSTX)における周辺乱流の運動は、局所的な中性ガスパフからの可視光発光の高速撮像を用いて測定された。周辺乱流の画像は、オーミック、Lモード、Hモードの各プラズマ条件について示され、解析された。二次元画像は、しばしば「ブロブ」として知られる強い局所的な発光領域を示し、これらは典型的には約10⁵ cm s⁻¹の速度でポロイダル方向および径方向の両方に移動する。また、空間的に周期的な構造が観測されることもある。

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nstx-u高精度(タイトル一致)

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NSTXEdge turbulence
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