Measurements of the Dispersion Relation of the Low-Frequency Ion Acoustic Instability in the Turbulently Heated TRIAM-1 Tokamak Plasma

Abstract
Density fluctuations in the frequency range of several MHz are observed in the turbulently heated TRIAM-1 tokamak plasma by means of a 4 mm microwave scattering method. It is found from measurements of the dispersion relation that this instability is considered to be the low-frequency ion acoustic instability.