Higher Harmonics in a Perturbative Transport Experiment

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Abstract

We have used the convolution method to obtain higher harmonics of the temperature perturbation in a heating modulation experiment on LHD plasma. In comparison with predictions based on the diffusive model, amplitudes of higher harmonics (such as the seventh) decayed much more slowly as they propagated radially. Changes in the time derivative of temperature at the onset and turning-off of heating power remained much sharper after radial propagation than those predicted by the diffusion model.

Journal

  • Plasma and Fusion Research

    Plasma and Fusion Research 8(0), 1202173-1202173, 2013

    The Japan Society of Plasma Science and Nuclear Fusion Research

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