Physical Review Letters
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Sheehan, D.P., R. McWilliams, N.S. Wolf, and D. Edrich, Fast-wave current drive above the slow-wave density limit; Phys. Rev. Lett. 64 1258 (1990).
Fast-wave and slow-wave current drive near the mean gyrofrequency were compared in the Irvine Torus. The slow-wave current drive density limit observation was extended by an order of magnitude in wave frequency compared to previous tokamak results. At low densities, the fast-wave antenna was observed to launch slow waves which drove currents that suffered from the current drive density limit identical to waves launched from the slow-wave antenna. At higher densities, current was driven by the fast-wave antenna while none was driven by the slow-wave antenna.
Digital USD Citation
Sheehan, D. P.; McWilliams, R.; Wolf, N. S.; and Edrich, D., "Fast-wave Current Drive above the Slow-Wave Density Limit" (1990). Physics and Biophysics: Faculty Publications. 7.