Influence of the inhomogeniety on the turbulence spectra of a magnetoactive plasma

Journal Article · Wed Jul 01 04:00:00 EDT 1981 · Sov. Phys. - JETP (Engl. Transl.); (United States)

OSTI ID:5908522

Ochirov, B D; Rubenchik, A M

Derivation is given of the spectra of high-frequency turbulence of an inhomogeneous magnetoactive plasma when these spectra are due to the stimulated scattering by ions. It is shown that even a very smooth inhomogeniety results in a considerable turbulence anisotropy: the number of waves traveling along the direction of a gradient is considerably less the number traveling in the opposite direction. In the case of oscillations traveling in the direction of decreasing concentration an inhomogeniety increases considerably the Landau damping. Consequently, a considerable part of the absorbed energy is transferred to fast electrons and a current appears along the magnetic field. A study is made of the influence of a stochastic inhomogeneity, which also gives rise to fast electrons. The role of decay processes is discussed.

• Research Organization: Institute of Automation and Electrometry, Siberian Branch of the Academy of Sciences of the USSR, Novosibirsk
• OSTI ID: 5908522
• Journal Information: Sov. Phys. - JETP (Engl. Transl.); (United States), Journal Name: Sov. Phys. - JETP (Engl. Transl.); (United States) Vol. 54:1; ISSN SPHJA
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700108* -- Fusion Energy-- Plasma Research-- Wave Phenomena
ANISOTROPY
CURRENTS
DAMPING
DECAY
ELECTRIC CURRENTS
INHOMOGENEOUS PLASMA
LANDAU DAMPING
MAGNETIC FIELDS
PLASMA
SCATTERING
TURBULENCE