Spontaneously excited waves in the ion cyclotron range of frequency on fusion devices

Ichimura, Makoto*; Yamaguchi, Yusuke*; Sato, Shoichi*; Moriyama, Shinichi; Kobayashi, Takayuki; Kojima, Atsushi

no journal, , 

In fusion-oriented devices, Alfven waves are spontaneously excited due to the existence of non-thermal energy component and anisotropy in the ion energy distribution. In the ion cyclotron range of frequency (ICRF), Alfven ion cyclotron (AIC) modes are spontaneously excited due to the strong temperature anisotropy and fast Alfven waves are observed as the ion cyclotron emission (ICE) in the burning plasma experiments. Experimental observations in GAMMA 10 and JT-60U are reviewed.