Effect of edge biasing on electrostatic fluctuations and particle transport in a nonfusion magnetoplasma

This paper concerns experiments about the role of a radial electric field o n the plasma turbulence in a toroidal magnetoplasma, and the possibility of anomalous transport reduction through the application of external biasing potentials to the plasma edge. The experiments show, for positive applied b ias potential, a progressive reduction of radial anomalous particle flux, a s well as electrostatic fluctuations. Some results on statistical and spect ral properties of plasma and density fluctuations are reported. (C) 2000 Am erican Institute of Physics. [S1070-664X(00)02105-4].