The distribution function of energetic particles and the time evolution of the frequency spectrum of fluctuations (IMAGE)
Caption
The distribution function of energetic particles and the time evolution of the frequency spectrum of fluctuations. Initially, the energetic particle distribution function is mountain-like. It slopes in the region of the first fluctuation which starts to grow, and as the shape of the mountain changes, the slope of the distribution function becomes steeper in the region of the second fluctuation. The deformation in the energetic particle distribution function caused by the first fluctuation excites the second fluctuation, and it has been clarified that the two fluctuations occur in a coupled manner.
Credit
National Institute for Fusion Science
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