INTERACTION OF PLASMAS WITH HIGH INTENSITY R-F FIELDS.
Final rept., 1 Mar 66-28 Feb 67,
SYRACUSE UNIV N Y DEPT OF ELECTRICAL ENGINEERING
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The report includes several topics related to the properties of a magnetoplasma generated in a cavity by the application of rf power in the X-band. Chapter II presents an approximate analysis showing that all the natural modes of the cavity are split by the presence of the plasma and its cyclotron resonance. Some limited experimental confirmation of the theory is included. In the cold, collisionless approximation, the frequency splitting results in a discrete absorption spectrum of TE modes just below the cyclotron frequency. The results indicate that it should be unnecessary to tune the excitation source as power is increased providing the driving frequency is in this band. Chapters III and IV contain analysis of the effects of longitudinal temperature and collisions on the right hand circularly polarized whistler wave near cyclotron resonance. The results give criteria from which the observability of a resonance of this mode between parallel plates can be determined. Such observations provide a diagnostic technique applicable to high density plasmas. Chapter V presents an analysis of the experimental and computational problems encountered in any attempt to measure Landau damping when the unperturbed distribution function is not Maxwellian. It is argued that the detailed confirmation of the theory by an electron beam measurement is not possible within the state of the art of distribution function measurements. Author
- Nuclear Physics and Elementary Particle Physics
- Radiofrequency Wave Propagation