Parametric turbulence and Cherenkov heating of electrons in a spatially inhomogeneous plasma

Journal Article · Tue Dec 01 04:00:00 EST 1981 · Sov. Phys. - JETP (Engl. Transl.); (United States)

OSTI ID:5389030

Silin, V P; Tikhonchuk, V T

Parametric absorption and the Langmuir turbulence in a plasma with a spatially inhomogeneous density are studied. Quantitative criteria for the applicability of the weak-turbulence approximation in the presence of a density gradient, which are connected with the suppression of the aperiodic instability of the Langmuir waves, are obtained. The efficiency of the parametric absorption of the pump waves and the Langmuir-turbulence spectrum are found in the one-dimensional approximation with allowance for the convective transfer of the energy of the waves from the resonance region. The process involving the transfer of the absorbed energy to the plasma electrons is considered, and the spectrum of the hot electrons and the energy flux transported by them are found.

• Research Organization: P. N. Lebedev Physics Institute, Academy of Sciences of the USSR, Moscow
• OSTI ID: 5389030
• Journal Information: Sov. Phys. - JETP (Engl. Transl.); (United States), Journal Name: Sov. Phys. - JETP (Engl. Transl.); (United States) Vol. 54:6; ISSN SPHJA
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700101* -- Fusion Energy-- Plasma Research-- Confinement
Heating
& Production
700108 -- Fusion Energy-- Plasma Research-- Wave Phenomena
ABSORPTION
CHERENKOV RADIATION
ELECTROMAGNETIC RADIATION
ELECTRONS
ELEMENTARY PARTICLES
ENERGY TRANSFER
FERMIONS
HEATING
INHOMOGENEOUS PLASMA
LEPTONS
NONLINEAR PROBLEMS
PLASMA
PLASMA HEATING
RADIATIONS
TURBULENCE
TURBULENT HEATING