Micro-Wave Propagation in Magneto-Plasma

Abstract

Microwave plasma diagnostic technique based upon the interaction of plasma with low itensity microwave field have been the subject of extensive development in recent years. We intended to carry on a systematic study of the microwave plasma interaction here at the plasma laboratory, Chiao-Tung University. This is the first report of our study. In this article we shall be dealing with a quasi-transverse mode with propagation vector making 45° with respect to the confining magnetic field, while the electric field of the wave is perpendicular to both the D.C. magnetic field and the propagation vector. A short theoretical derivation of the imaginary part of the index of refraction which predominates the attenuation of the probing wave is given. A coputer plotting of the attenuation line shape as function of the confining magnetic field is given, and is found in good agreement to the observed result. The magnitude of the power attenuation is found also in good agreement.