MEASUREMENTS OF PLASMA LOADING IN THE PRESENCE OF ELECTROSTATIC-WAVES

An experimental analysis of the plasma impedance with respect to the c oupling of ES (electrostatic) waves is described in this paper. The wa ves are excited through a slow-wave antenna and the experiment perform ed in a toroidal device [C. Riccardi et al., Plasma Phys. 36, 1791 (19 93)]. The measured impedance is compared with a simple theoretical mod el for magnetized homogeneous plasma, in order to establish the presen ce of bulk or surface waves and of some nonlinear effects when power i s raised. (C) 1995 American Institute of Physics.