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Overview of magnetic structure induced by the TEXTOR-DED and the related transport

S.S. Abdullaev, K.H. Finken, M.W. Jakubowski, S.V. Kasilov, M. Kobayashi, D. Reiser, D. Reiter, A.M. Runov, R. Wolf2003年被引用 45Nuclear FusionIF 3出版社

The dynamic ergodic divertor (DED), a new concept of the ergodic divertor, is presently installed for the TEXTOR tokamak. Beside the conventional ergodic divertor operation the DED also permits the operation with a rotating magnetic field which allows, in particular, to broaden the heat deposition pattern on the divertor plates. Since its first proposal of the DED in 1996 the structure of magnetic field, especially, the onset of ergodic zone of field lines and related transport in the DED-operation has been extensively studied using different theoretical and numerical methods. New methods to study the magnetic field, in particular, the field line mapping have been developed. The presentation gives the overview of the studies on the structure of magnetic field in the DED, the formation of the ergodic and laminar zones of field lines at the plasma edge. It also includes studies on the modelling efforts of the transport of heat and particles in the ergodic and laminar zones.

日本語訳

動的エルゴディックダイバータ(DED)は、エルゴディックダイバータの新しい概念であり、現在TEXTORトカマクに設置されている。従来のエルゴディックダイバータ運転に加えて、DEDは回転磁場による運転も可能であり、これにより特にダイバータ板上の熱負荷分布を広げることができる。1996年のDEDの最初の提案以来、磁場構造、特に磁力線のエルゴディック領域の発生と、DED運転における関連する輸送現象は、様々な理論的・数値的手法を用いて広範囲に研究されてきた。磁場を研究するための新しい手法、特に磁力線マッピングが開発されている。本発表では、DEDにおける磁場構造、プラズマ端部における磁力線のエルゴディック領域とラミナー領域の形成に関する研究の概要を示す。また、エルゴディック領域とラミナー領域における熱と粒子の輸送のモデリングに関する研究も含まれる。

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