https://doi.org/10.1051/epjconf/201714701001
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.
a e-mail: alf.koehn@ipp.mpg.de
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
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
