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Transport and MHD studies at high T-e in FTU tokamak

机译：FTU托卡马克高T-e的运输和MHD研究

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Magnetohydrodynamic (MHD) activity and energy transport at rational-q surfaces is analysed on the basis of experimental results on current density profile control obtained with localized electron cyclotron resonance heating (ECRH) on FTU tokamak. The MHD response, in particular 2/1 and 1/1 modes, to ECRH is in agreement with expectations from a theoretical model including resistive wall braking and toroidal mode coupling. It is also shown that the magnetic shear at r(q=1) could control m = 1 mode saturation and magnetic reconnection. Heating results with ECRH at steady state indicate that transport enhancement is the dominant effect on confinement at the q = 2 surface, and suggest that conduction and convection inside the asymmetric m = 1 island should both be taken into account for a proper description of the thermal response to localized ECRH. [References: 22]
机译：基于在FTU托卡马克上进行局部电子回旋共振加热（ECRH）获得的电流密度分布控制的实验结果，分析了有理q面上的磁流体动力学（MHD）活性和能量传输。 MHD对ECRH的响应，特别是2/1和1/1模式，与包括电阻壁制动和环形模式耦合在内的理论模型的预期一致。还表明，在r（q = 1）处的磁切变可以控制m = 1的模式饱和和磁重联。 ECRH在稳态下的加热结果表明，传输增强是q = 2表面上的局限性的主要影响，并且建议对于不对称m = 1岛内部的传导和对流都应同时考虑对本地ECRH的响应。 [参考：22]

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