3He in H, Ion Cyclotron Resonance Frequency Mode Conversion and Minority Heating Experiments in ASDEX Upgrade

Abstract When power is deposited inside the q=1 surface into the electrons, the central electron temperature profiles become very peaked, and the sawtooth frequency increases with increasing electron temperature. This is in contrast to the Te-3/2 dependence of the sawtooth frequency, observed with NI and minority heating. Fast particles in the edge are inversely correlated with central absorption. To locate the power deposition correctly in the mode conversion scenario using 3He in H, it is important to take into account the presence of residual D.