Experimental studies of plasma turbulence

This chapter is based on two lectures given by M. Shats at the Summer School describing studies of turbulence in toroidal plasma confinement experiments. Some plasma diagnostics relevant for turbulence studies are reviewed. The data analysis techniques and methods are described in the context of the turbulence studies performed in the low-temperature plasma of the H-l toroidal heliac, with particular emphasis on t h e analysis of spectral transfer in turbulent spectra. Experimental results on selforganization of the two-dimensional fluid turbulence are presented to illustrate some similarity with processes in quasi-two-dimensional plasma turbulence. Experimental signatures of zonal flows in plasma are illustrated.