Quasilinear theory of current-driven ion-acoustic turbulence in a magnetized collisional plasma
The stationary spectra of current-driven ion-acoustic turbulence in a magnetized plasma (with the electron drift velocity v/sub d/ along B/sub 0/) are studied within the framework of quasilinear theory. In particular, a plasma with strongly magnetized electrons (..omega../sub c/e>kdv/sub T/e) and unmagnetized ions (..omega..>..omega../sub c/i) well above the threshold of instability (v/sub d//v/sub T/e>>v/sub s//v/sub T/e, ..nu../sub i/n/..omega../sub p/i) is considered. It is found that the waves are mainly excited in a narrow angular region almost perpendicular to v/sub d/ (i.e., cos thetaapprox. =v/sub s//v/sub d/<<1), which is in agreement with experimental results by Gekelman and Stenzel (Phys. Fluids 21, 2014 (1978)) and Batanov et al.
- Research Organization:
- P. N. Lebedev Physics Institute of the Academy of Sciences of the USSR, Leninskii Prospekt, 53, Moscow, Union of Soviet Socialist Republics
- OSTI ID:
- 5508219
- Journal Information:
- Phys. Fluids; (United States), Vol. 26:12
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
COLLISIONAL PLASMA
ION ACOUSTIC WAVES
TURBULENCE
ELECTRIC CONDUCTIVITY
LANDAU DAMPING
MAGNETIZATION
NONLINEAR PROBLEMS
RESONANCE
STEADY-STATE CONDITIONS
THRESHOLD ENERGY
TRANSPORT THEORY
DAMPING
ELECTRICAL PROPERTIES
ENERGY
ION WAVES
PHYSICAL PROPERTIES
PLASMA
PLASMA WAVES
700105* - Fusion Energy- Plasma Research- Plasma Kinetics-Theoretical- (-1987)