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C. Chang1, C. K. Phillips2,
R. B. White2, S. Zweben2, P. T. Bonoli3,
J. Rice3, M. Greenwald3,
J. S. deGrassie4
1 Courant Institute, New York University, 251 Mercer St., New York,
N.Y. 10012 and Department of Physics, KAIST, Korea
2 Princeton Plasma Physics Laboratory, Princeton, NJ 08543
3 Plasma Science and Fusion Center, MIT, Cambridge, MA 02139-4307
4 General Atomics, P.O. Box 85608, San Diego, CA 92121-9784
Abstract. A physical mechanism to generate plasma rotation by ICRH is
presented in a tokamak geometry. By breaking the omnigenity of resonant ion
orbits, ICRH can induce a non-ambipolar minor-radial flow of resonant
ions. This induces a return current jpr in the plasma, which then drives
plasma rotation through the
jpr×B force. It is estimated that the
fast-wave power in the present-day tokamak experiments can be strong enough to
give a significant modification to plasma rotation.
IAEA 2001
