Microwave enhanced-scattering correlation diagnostics of a turbulent plasma
ABSTRACT A study is made of the influence of large-scale plasma turbulence on the results from a diagnostic method that is based on
enhanced scattering of microwaves near the upper hybrid resonance and is highly sensitive to small-scale fluctuations. The
resolution in radial wavenumbers that is provided by an enhanced-scattering correlation analysis of small-scale fluctuations
with allowance for multiple small-angle scatterings of the probing and scattered waves along their paths is determined. The
frequency spectrum of a wave that is backscattered by the small-scale fluctuations involved in large-scale turbulent motion
and undergoes multiple smallangle scatterings is analyzed.