The first experimental discovery in the world of the propagation of plasma turbulence

(National Institutes of Natural Sciences) The research group of NIFS together with collaborators in the United States applied the 'heat pulse modulation method' in the magnetic island produced intentionally in the tokamak 'Doublet III-D.' Temperature gradient inherent in the magnetically confined plasma causes turbulence while there is no turbulence in the magnetic island because of the absence of the gradient. That the turbulence propagates has now been demonstrated for the first time by investigating turbulence in the magnetic island.