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Theory-based scaling of the SOL width in circular limited tokamak plasmas

F.D. Halpern, P. Ricci, B. Labit, I. Furno, S. Jolliet, J. Loizu, A. Mosetto, G. Arnoux, J.P. Gunn, J. Horacek2013年被引用 49Nuclear FusionIF 3出版社

A theory-based scaling for the characteristic length of a circular, limited tokamak scrape-off layer (SOL) is obtained by considering the balance between parallel losses and non-linearly saturated resistive ballooning mode turbulence driving anomalous perpendicular transport. The SOL size increases with plasma size, resistivity, and safety factor q. The scaling is verified against flux-driven non-linear turbulence simulations, which reveal good agreement within a wide range of dimensionless parameters, including parameters closely matching the TCV tokamak. An initial comparison of the theory against experimental data from several tokamaks also yields good agreement.

日本語訳

円形・リミター配位のトカマクのスクレイプオフ層(SOL)の特性長に対する理論ベースのスケーリングは、平行方向の損失と、異常な垂直方向輸送を駆動する非線形飽和抵抗性バルーニングモード乱流との間のバランスを考慮することにより得られる。SOLのサイズは、プラズマサイズ、抵抗率、および安全係数qとともに増加する。このスケーリングは、フラックス駆動非線形乱流シミュレーションに対して検証され、広範囲の無次元パラメータ(TCVトカマクに密接に一致するパラメータを含む)内で良好な一致が明らかになった。理論と複数のトカマクからの実験データとの初期比較もまた良好な一致を示す。

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