托卡马克等离子体中电子回旋加热下的旋转驱动与动量传输
Rotation drive and momentum transport with electron cyclotron heating in tokamak plasmas.
作者信息
Yoshida M, Sakamoto Y, Takenaga H, Ide S, Oyama N, Kobayashi T, Kamada Y
机构信息
Japan Atomic Energy Agency, Naka, Ibaraki-ken, 311-0193, Japan.
出版信息
Phys Rev Lett. 2009 Aug 7;103(6):065003. doi: 10.1103/PhysRevLett.103.065003. Epub 2009 Aug 4.
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.
在JT-60U托卡马克装置中，通过分离动量传输变化、压力梯度引起的本征旋转以及电子回旋共振加热（ECRH）引起的本征旋转的影响，研究了ECRH对环形旋转速度分布的作用。研究发现，ECRH增加了环形动量扩散率和对流速度。还发现，ECRH在EC沉积半径内驱动同向（co）本征旋转，在EC沉积半径外驱动反向（ctr）本征旋转。这种ctr旋转从EC沉积半径开始并传播到边缘区域。
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