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Turbulence and transport in the scrape-off layer TCABR tokamak

机译:TCABR托卡马克刮除层中的湍流和运输

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We study the scrape-off layer turbulence and transport in Tokamak Chauffage Alfven Bresilien (TCABR) before and during the launching of radio frequency excited waves that interact with the boundary plasma. We present the main characteristics of the background electrostatic fluctuations and the intermittent bursts. During the perturbation, the plasma turbulence intensity increases and the average phase velocity reverses its direction. The total turbulence driven transport and the transport radially convected by the intermittent fluctuation bursts also increase with the perturbation. The probability distributions of the bursts have long tails, resembling those typical of flight distributions with a decay parameter increasing with the wave excitation.
机译:我们在发射与边界等离子体相互作用的射频激发波之前和期间,研究了托卡马克Chauffage Alfven Bresilien(TCABR)中的刮除层湍流和运输。我们介绍了背景静电起伏和间歇性猝发的主要特征。在扰动期间,等离子体湍流强度增加,平均相速度反转其方向。总的湍流驱动的运输和由间歇性波动爆发径向对流的运输也随扰动而增加。突发的概率分布具有长尾巴,类似于典型的飞行分布,其衰减参数随波激励而增加。

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