Parametric instabilities in inhomogeneous plasma
- Author
- Nicholson, Dwight Roy
- Published
- United States : [publisher not identified], 1975.
[Oak Ridge, Tennessee] : [U.S. Atomic Energy Commission], 1975. - Physical Description
- microfiche : negative ; 11 x 15 cm
- Summary
- We consider the nonlinear coupling of three waves in a plasma. One of the waves is assumed large and constant; its amplitude is the parameter of the parametric instability. The spatial-temporal evolution of the other two waves la treated theoretically, in one dimension, by analytic methods and by direct numerical Integration of the basic equations. Various monotonic forms of inhomogeneity are considered; agreement with previous work is found and new results are established. Nonmonotonic inhomogeneities are considered, In the form of turbulence and, as a model problem, In the form of a simple sinusoidal modulation. Relatively small amounts of nonmonotonic inhomogeneity, in the presence of a linear density gradient, are found to destabilize the well-known convective saturation, absolute growth occurring Instead.
- Report Numbers
- LBL-3267
- Other Subject(s)
- Collection
- U.S. Atomic Energy Commission depository collection.
- Note
- DOE contract number: W-7405-ENG-48
NSA number: NSA-32-022144
OSTI Identifier 4166962
Research organization: Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States). - Funding Information
- Sponsored by US Energy Research and Development Administration (ERDA).
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