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Parametric instabilities in plasma with sinusoidal density modulation

Journal Article · · Phys. Fluids; (United States)
DOI:https://doi.org/10.1063/1.861555· OSTI ID:7194681
Parametric instabilities in the presence of sinusoidal plasma density modulation are considered analytically and by numerical integration of the coupled mode equations. The density modulation tends to reduce temporal and spatial growth rates. If there is a linear density gradient in addition to the density modulation, the usual convective saturation exists for small modulation; however, above a certain threshold modulation, the convective saturation is replaced by absolute growth. This result is in qualitative agreement with earlier work on plasma with linear density gradient plus turbulence. (AIP)
Research Organization:
Lawrence Berkeley Laboratory, University of California, Berkeley, California 94720
OSTI ID:
7194681
Journal Information:
Phys. Fluids; (United States), Journal Name: Phys. Fluids; (United States) Vol. 19:6; ISSN PFLDA
Country of Publication:
United States
Language:
English

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