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The geometry of the ICRF-induced wave–SOL interaction. A multi-machine experimental review in view of the ITER operation

L. Colas, G. Urbanczyk, M. Goniche, J. Hillairet, J.-M. Bernard, C. Bourdelle, N. Fedorczak, C. Guillemaut, W. Helou, V. Bobkov2022年被引用 19Nuclear FusionIF 3出版社

As part of ITPA-Integrated Operational Scenario activities, this contribution reviews recent experimental characterizations of radio-frequency (RF)-induced scrape-off layer (SOL) modifications of various tokamaks worldwide and of the LArge Plasma Device at UCLA. The phenomenology, as observed using a large variety of measurement techniques, is consistent with expectations from RF sheath rectification. Emphasis is then put on the complex three-dimensional (3D) spatial patterns of the RF–SOL interaction, in relation to the magnetic topology and the spatial distribution of RF currents over the metallic structures surrounding the RF wave launchers. Dependence on the local plasma parameters in the antenna vicinity is also briefly addressed. The final part discusses implications for future devices.

日本語訳

ITPA統合運転シナリオ活動の一環として、本稿は世界中の様々なトカマクおよびUCLAのLArge Plasma Deviceにおける高周波(RF)誘起スクレイプオフ層(SOL)変調の最近の実験的特徴付けを概説する。多種多様な測定手法を用いて観測された現象は、RFシース整流からの予想と一致している。その後、磁気トポロジーとRF波ランチャーを取り囲む金属構造物上のRF電流の空間分布に関連して、RF-SOL相互作用の複雑な三次元(3D)空間パターンに重点が置かれる。アンテナ近傍の局所プラズマパラメータへの依存性についても簡潔に述べられる。最後の部分では、将来の装置への影響について議論する。

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iter高精度(タイトル一致)

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ITERIon cyclotron heatingScrape-off layer
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