Alfvén Laboratory, Teknikringen 31, KTH, SE-100 44 Stockholm, Sweden
+) General Atomics, San Diego, California 92186-9784, USA
Mode conversion at the second harmonic cyclotron resonance is studied in a toroidal plasma, showing how the ion-Bernstein wave can dramatically affect the power profile and partition among the species. The results obtained with the gyrokinetic toroidal PENN code in particular suggest that off-axis electron and second harmonic core ion heating should become important when the temperatures in JET reach 10 keV.
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