Theoretical aspects of the nonlinear interaction of drift-type instabilities in a plasma

Technical Report · Wed Jul 01 04:00:00 EDT 1981

OSTI ID:6334558

Terry, P

Various theoretical aspects of plasma turbulence are explored in the context of low frequency drift-type instabilities in toroidally confined plasmas. Of central importance is consideration of the random phase approximation - its role and validity in plasma turbulence theories. Linear theory is first considered to find the criteria for marginal stability of the toroidal ion temperature gradient drift mode. Analytic criteria for the onset of instability giving the dependence on wavenumber, magnetic curvature, and temperature gradient are derived from the drift kinetic equation with the grad-B and curvature drift resonances retained.

• Research Organization: Texas Univ., Austin (USA). Fusion Research Center
• DOE Contract Number: AC05-76ET53036
• OSTI ID: 6334558
• Report Number(s): DOE/ET/53036-30; ON: DE81028507
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700107* -- Fusion Energy-- Plasma Research-- Instabilities
ANNULAR SPACE
CLOSED PLASMA DEVICES
CONFIGURATION
DRIFT INSTABILITY
EQUATIONS
INSTABILITY
INTERACTIONS
KINETIC EQUATIONS
NONLINEAR PROBLEMS
PLASMA
PLASMA INSTABILITY
PLASMA MICROINSTABILITIES
RANDOM PHASE APPROXIMATION
SPACE
THERMONUCLEAR DEVICES
TOKAMAK DEVICES
TOROIDAL CONFIGURATION
TURBULENCE