ORDINARY MODE IN AN INHOMOGENEOUS THERMAL PLASMA IN THE PRESENCE OF MILDLY SUPRATHERMAL ELECTRONS

Abstract

he perpendicularly propagating ordinary mode is investigated in an inhomogeneous thermal plasma containing a component of mildly suprathermal electrons. Expressions for the real and imaginary parts of the refractive index of the ordinary mode are obtained. Using some typical plasma parameters graphs are obtained exhibiting the behaviour of the real part of the refractive index and the penetration character of the ordinary mode into the plasma as a function of U*, BORNATICI and ENGLEMANN (1978) have shown the effect of runaways on electron cyclotron radiation in a cold inhomogeneous plasma, from the macroscopic point of view. The purpose of this note is to investigate the above mentioned situation for a hot plasma