Parametric turbulence of a magnetized plasma

Journal Article · Mon Mar 01 04:00:00 EST 1976 · Sov. Phys. - Tech. Phys. (Engl. Transl.); (United States)

OSTI ID:7261209

Pustovalov, V V; Romanov, A B; Silin, V P; Tikhonchuk, V T

The theory of weak turbulence is used to analyze the evolution of turbulent fluctuations in a homogeneous magnetized plasma. These fluctuations grow in time because of a parametric instability involving the decay of the intense pump wave into two electrostatic waves at the upper hybrid frequencies and the slow acoustic wave. At a certain point, further growth of the fluctuations is prevented by induced scattering by ions. Two types of turbulence relaxation can occur, depending on the nature of the induced scattering: an oscillatory transition of the noise to a steady turbulent state or undamped relaxation oscillations of the noise. The spectral energy density of the turbulent noise, the integral of this energy density over the spectrum, the scale times, and a quantiative description of the evolution of the noise over time and in wave vector space are found. (AIP)

• OSTI ID: 7261209
• Journal Information: Sov. Phys. - Tech. Phys. (Engl. Transl.); (United States), Journal Name: Sov. Phys. - Tech. Phys. (Engl. Transl.); (United States) Vol. 21:3; ISSN SPTPA
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700107* -- Fusion Energy-- Plasma Research-- Instabilities
ELECTROMAGNETIC RADIATION
HOMOGENEOUS PLASMA
INSTABILITY
PARAMETRIC INSTABILITIES
PLASMA
PLASMA INSTABILITY
PLASMA MACROINSTABILITIES
RADIATIONS
TURBULENCE
VARIATIONS