%0 Journal Article
%T ECRH beam broadening in the edge turbulent plasma of fusion machines
%A E. V. Sysoeva
%A F. da Silva
%A E. Z. Gusakov
%A S. Heuraux
%A A. Yu. Popov
%J Physics
%D 2014
%I arXiv
%X Two analytical models for the ordinary mode propagating through inhomogeneous edge plasma layer are developed. Simple analytical expressions for diffusion-like angular and spatial beam width variation are obtained and compared to time-averaged results coming from 2D Maxwell's equations solver for different turbulence k-spectra and plasma conditions. The strong spatial broadening of microwave beam is predicted by the two approaches at realistic turbulent edge parameters for ECRH experiments at ITER.
%U http://arxiv.org/abs/1406.4449v1