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Rotation drive and momentum transport with electron cyclotron heating in tokamak plasmas

Yoshida, Maiko; Sakamoto, Yoshiteru; Takenaga, Hidenobu; Ide, Shunsuke; Oyama, Naoyuki; Kobayashi, Takayuki; Kamada, Yutaka; JT-60 Team

The role of electron cyclotron range of frequency (ECRF) wave on the toroidal rotation velocity profile has been investigated in JT-60U plasmas by separating the effects of the momentum transport, the intrinsic rotation by pressure gradient and the intrinsic rotation by ECRF. It is found that ECRF increases the toroidal momentum diffusivity and the convection velocity. ECRF drives the CO-intrinsic rotation inside the EC deposition and drives the CTR-intrinsic rotation outside the EC deposition. This CTR-rotation starts from the EC deposition radius and propagates to the edge region.

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Category:Physics, Multidisciplinary

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