Radial Interaction in Dynamic Heat Transport of LHD Plasmas
نویسندگان
چکیده
The radial interaction of heat transport is clarified by cross-correlation between electron heat flux and electron temperature gradient in LHD. Correlations between the heat transport dynamics and the radial structures of turbulence are also investigated. The existence of a turbulence modulator is discerned by using the conventional reflectometry signals. The amplitude of high frequency (> 100kHz) density fluctuations is modulated with low frequency (< 5 kHz) in edge-core coupled plasmas. The electron cyclotron emission signals suggest the amplitude modulator has a long distance radial correlation.
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