Nonstationary plasma turbulence in parametric resonances

Journal Article · Mon Dec 01 04:00:00 EST 1975 · Sov. Phys. - Tech. Phys. (Engl. Transl.); (United States)

OSTI ID:7272198

Pustovalov, V V; Silin, V P

Analysis of the nonlinear integrodifferential equation for the spectral energy density of longwave ion-acoustic waves subjected to stimulated scattering by ions reveals an oscillatory structure in the nonstationary turbulent state of a nonisothermal plasma; the turbulence is initiated by a parametric instability involving the decay of an intense electromagnetic wave into an electron plasma wave and an acoustic wave. The stability of the stationary turbulent of a parametrically excited plasma, studied previously, is demonstrated. The period of the oscillations in the anomalous-absorption coefficient for absorption of intense radiation by a plasma near the critical density is found. A numerical estimate of this period is given for the case of a laser-produced plasma. (AIP)

• Research Organization: P. N. Lebedev Physics Institute, Academy of Sciences of the USSR, Moscow
• OSTI ID: 7272198
• Journal Information: Sov. Phys. - Tech. Phys. (Engl. Transl.); (United States), Journal Name: Sov. Phys. - Tech. Phys. (Engl. Transl.); (United States) Vol. 20:12; ISSN SPTPA
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700107* -- Fusion Energy-- Plasma Research-- Instabilities
700108 -- Fusion Energy-- Plasma Research-- Wave Phenomena
INSTABILITY
ION ACOUSTIC WAVES
ION WAVES
LASER-PRODUCED PLASMA
OSCILLATIONS
PARAMETRIC INSTABILITIES
PLASMA
PLASMA INSTABILITY
PLASMA MACROINSTABILITIES
PLASMA WAVES
TURBULENCE