Instability of high-pressure non-self-maintained volume microwave discharge, methods of instability suppression
- Moscow Power Eng. Inst. (Russian Federation)
At present numerous investigators considers microwave discharge (MD) as a perspective tool for generating non-equilibrium plasma, intended for application mostly in plasmachemistry technologies. Employing of MD aims at creation of sufficiently large spatially homogeneous plasma area. So called non-self-maintained (nsm) MD, burning in relatively weak fields and demanding gas external preionization, is the most convenient for the purpose. But the time of high-pressure plasma uniform evolution in microwave field is limited by development of various thermal, kinetic and ionization-field instabilities, resulting in formation of a complicated spatial MD structure. So, the problem of nsm discharge stabilization seems to be actual. Solving of the problem assumes the presence of clear understanding of the mechanism causing plasma instability in a microwave field. At the same time numerous theoretical investigations of instability mechanisms can not answer principle questions, corrected with structure generation in a high-pressure microwave discharge plasma.
- OSTI ID:
- 213000
- Report Number(s):
- CONF-950749--
- Country of Publication:
- United States
- Language:
- English
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