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arXiv · 1703.05182

Perturbing microwave beams by plasma density fluctuations

Alf Köhn·Eberhard Holzhauer·Jarrod Leddy·Matthew B. Thomas·Roddy G. L. Vann
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Abstract

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.

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Alf Köhn, Eberhard Holzhauer, Jarrod Leddy, Matthew B. Thomas, Roddy G. L. Vann. 2017-03-15. Perturbing microwave beams by plasma density fluctuations. https://doi.org/10.1051/epjconf/201714701001

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