Yueqiang Liu M. S. Chu C. G. Gimblett R. J. Hastie
An analytical, large aspect ratio, calculation of the drift-kinetic energy perturbation is carried out for the resistive wall mode, due to the mode resonance with the magnetic precession drifts of trapped thermal ions and electrons. Four asymptotic cases are identified and analyzed in detail. Generally, a partial stabilization of the mode is possib…
PublishedYueqiang Liu A. R. Albanese A. Portone G. Rubinacci F. Villone
In a fusion device such as a tokamak, it is well known that an unstable external kink mode, driven either by the plasma current or pressure, produces an external magnetic field perturbation, which induces stabilizing image currents in the surrounding conducting structures, such as the vacuum vessels made of low resistivity materials. The image curr…
PublishedYueqiang Liu M. S. Chu A. M. Garofalo R. J. La Haye Y. Gribov M. Gryaznevich T. C. Hender D. F. Howell P. De Vries M. Okabayashi S. D. Pinches H. Reimerdes EFDA-JET Contributors
Active control of the resistive wall mode RWM for DIII-D [Luxon and Davis, Fusion Technol. 8 , 441 (1985)] plasmas is studied using the MARS-F code [Y. Q. Liu, and et al. , Phys. Plasmas 7 , 3681 (2000)]. Control optimization shows that the mode can be stabilized up to the ideal wall beta limit, using the internal control coils I-coils and poloidal…
Published