Perturbing microwave beams by plasma density fluctuations
1 Max Planck Institute for Plasma Physics, Garching, Germany
2 Institute of Interfacial Process Engineering and Plasma Technology, University of Stuttgart, Stuttgart, Germany
3 York Plasma Institute, Department of Physics, University of York, York, U.K.
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Published online: 24 July 2017
The propagation of microwaves across a turbulent plasma density layer is investigated with full-wave simulations. To properly represent a fusion edge-plasma, drift-wave turbulence is considered based on the Hasegawa-Wakatani model. Scattering and broadening of a microwave beam whose amplitude distribution is of Gaussian shape is studied in detail as a function of certain turbulence properties. Parameters leading to the strongest deterioration of the microwave beam are identified and implications for existing experiments are given.
© The Authors, published by EDP Sciences, 2017
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