Convectively unstable two-plasmon decay modes in a weakly inhomogeneous plasma
Journal Article
·
· Phys. Fluids; (United States)
The behavior of the convective two-plasmon decay instability is studied using a kinetic theory formulation which is applicable to high-temperature plasmas. Theoretical values for the Langmuir wave amplification are obtained in several limits. The temperature-dependent effects of Landau damping and kinetic theory corrections to the coupling coefficients are studied. Landau damping significantly reduces the spectrum of unstable modes for T>1 keV, while kinetic corrections become important for T>10 keV. The nonresonant scattering of Langmuir waves by thermal electrons is calculated and is found to be comparable to the resonant convective process for T>20 keV.
- Research Organization:
- KMS Fusion, Inc., Ann Arbor, Michigan 48106
- OSTI ID:
- 5557557
- Journal Information:
- Phys. Fluids; (United States), Journal Name: Phys. Fluids; (United States) Vol. 28:8; ISSN PFLDA
- Country of Publication:
- United States
- Language:
- English
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