Abstract
We report a study of electron density fluctuations in the adiabatic toroidal compressor tokamak using heterodyne detection to study the small-angle scattering of CO2 laser radiation. Data are presented for the frequencies, radial and poloidal wave vectors, and amplitudes of the turbulent low-frequency modes present in the adiabatic toroidal compressor. The results of searches are reported for scattering from the "thermal" ion feature and from a driven wave at 800 MHz (near the lower hybrid resonance).