Rotation drive and momentum transport with electron cyclotron heating in tokamak plasmas.
Rotation drive and momentum transport with electron cyclotron heating in tokamak plasmas.
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DOI：
10.1103/physrevlett.103.065003
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发表时间：
2009-08
影响因子：
8.6
通讯作者：
M. Yoshida;Y. Sakamoto;H. Takenaga;S. Ide;N. Oyama;T. Kobayashi;Y. Kamada
中科院分区：
文献类型：
--
作者：
M. Yoshida;Y. Sakamoto;H. Takenaga;S. Ide;N. Oyama;T. Kobayashi;Y. Kamada
在JT-60 U装置上，通过分离动量输运变化、压力梯度引起的内禀旋转和电子回旋共振加热（ECRH）引起的内禀旋转的影响，研究了电子回旋共振加热（ECRH）对环向旋转速度剖面的作用。结果表明，ECRH提高了环向动量扩散率和对流速度。还发现ECRH驱动EC沉积半径内的同向（co）内禀旋转和EC沉积半径外的反向（ctr）内禀旋转。该ctr旋转从EC沉积半径开始并传播到边缘区域。
The role of electron cyclotron resonance heating (ECRH) on the toroidal rotation velocity profile has been investigated in the JT-60U tokamak device by separating the effects of the change in momentum transport, the intrinsic rotation by pressure gradient, and the intrinsic rotation by ECRH. It is found that ECRH increases the toroidal momentum diffusivity and the convection velocity. It is also found that ECRH drives the codirection (co) intrinsic rotation inside the EC deposition radius and the counterdirection (ctr) intrinsic rotation outside the EC deposition radius. This ctr rotation starts from the EC deposition radius and propagates to the edge region.