Reflectometry is influenced by plasma pertubations and turbulence, making the understanding of how signals are affected by such phenomena of prime importance. In this work we look at the effect magnetic islands with turbulence have on the amplitude and phase of reflectometry signals. for this purpose we resort to a two-dimensional finite difference time domain code and use a turbulence model based on experimental data. we investigate the possibility of occurence of destructive interference due to a chain of islands and the role turbulence plays.
The simulation of an island with turbulence present atthe resonant surface q=2 , with dimensions of the same order of magnitude as the phenomena obseved on ASDEX Upgrade or Tore Supra, is also done with results wich are in agreement with experimental observations.