EXCITATION OF ACOUSTICAL WAVES IN A PLASMA
Technical Report
·
OSTI ID:4830971
The possibility of putting significani amounts of power into the acoustical wave by a suitable choice of parameters characterizing the plasma and the incident wave is investigated. They are plasma density, collision frequency, angle of incidence and electromagnetic wave frequency. The conclusion reached is that it is not possible under ordinary laboratory conditions to transfer significant power to the acoustical wave, and that in problems of propagation in a plasma acoustical wave considerations may be neglected with very little error. The conclusions are based on a small signal linear analysis, and are subject to the model of the plasma assumed, i.e., a neutral weakly ionized umform plasma with electron, ion, and neutral temperatures equal except for small perturbations. The assumptions and development which lead to the dynamical equations used in the analysis are discussed, and a quantitative estimate is made of the region where the small signal analysis is valid. Above a certain power Ievel the equations become nonlinear. (auth)
- Research Organization:
- Brooklyn. Polytechnic Inst. Microwave Research Inst.
- NSA Number:
- NSA-16-018557
- OSTI ID:
- 4830971
- Report Number(s):
- PIBMRI-893-61; RADC-TN-61-201
- Country of Publication:
- United States
- Language:
- English
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