Anomalous absorption near the lower-hybrid frequency
Journal Article
·
· Physics of Fluids (New York)
Turbulent absorption of a wave with a frequency near or above the lower-hybrid frequency in a parametrically unstable plasma is investigated. The analysis is restricted to the transitory quasi-linear stage of the development of the instability. Within the quasi-linear framework, the effect of the driven turbulence on the spatial damping of the pump wave and the mode conversion efficiency at the lower-hybrid resonance is discussed. Finally, it is found that, at a moderate level of the turbulent noise (W/n 0 T e ≃10-6), the pump wave experiences an appreciable dissipative effect.
- Research Organization:
- Association Euratom-CEA sur la fusion, Departement de Physique du Plasma et de la Fusion Controlee, Centre d'Etudes Nucleaires, 92260 Fontenay-aux-Roses, France
- Sponsoring Organization:
- USDOE
- NSA Number:
- NSA-33-025725
- OSTI ID:
- 4028579
- Journal Information:
- Physics of Fluids (New York), Journal Name: Physics of Fluids (New York) Journal Issue: 2 Vol. 19; ISSN 0031-9171; ISSN PFLDAS
- Publisher:
- American Institute of Physics
- Country of Publication:
- United States
- Language:
- English
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