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A non-local synergism between electron cyclotron waves and lower hybrid waves induced by transport

机译:电子回旋波与输运引起的低杂波之间的非局部协同作用

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In this paper, we study the effects of particle radial transport on the electron cyclotron (EC) and lower hybrid (LH) power deposition profiles and current drive efficiency. We consider a tokamak plasma under the combined action of LH waves, EC waves, collisions and spatial transport of electrons across the magnetic surfaces, and consider situations in which the spatial location of the peaks of power deposition profiles for EC and LH waves is not the same. Our results, found from numerical solution of the diffusion equation, indicate significant modification in the LH power deposition profile and show evidence of a non-local synergism between LH and EC waves when transport is present, leading to strong enhancing of RF current drive efficiency. [References: 39]
机译:在本文中,我们研究了粒子径向传输对电子回旋加速器(EC)和较低混合动力(LH)功率沉积曲线以及电流驱动效率的影响。我们考虑在LH波,EC波,电子的碰撞和电子在磁性表面上的空间传输的共同作用下的托卡马克等离子体,并考虑其中EC和LH波的功率沉积轮廓的峰的空间位置不是相同。从扩散方程的数值解中发现的我们的结果表明,LH功率沉积轮廓发生了显着变化,并显示了存在传输时LH和EC波之间存在非局部协同作用的证据,从而导致RF电流驱动效率的大幅提高。 [参考:39]

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