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Microinstabilities in complex magnetic field geometries and high-. beta. sheared sheath structure. Progress report, March 1, 1976--February 28, 1977

Technical Report ·
DOI:https://doi.org/10.2172/7214688· OSTI ID:7214688
;
The new approach for the solution of the Vlasov equation for complex magnetic field geometries and for the determination of ensuing stability criteria for microinstabilities has been developed further by estimation of various parameters in the contexts of Tokamak and Tormac regimes, by carrying out analytically the averaging over the fast cyclotron motion to obtain a compact expression for the dispersion equation, and by considering the ensuing results for stability of the drift wave in various parameter domains. The study of high-..beta.., high shear plasma sheath structures has continued both analytically and through computation work. Results in the Vlasov-fluid model for simple ion distribution functions indicate a relation for maximum shear the sheath can support for a given ..beta... The effect of the rotation of the main plasma on the sheath structure, the coupling of the main plasma to the sheath and its rotational damping, and the formation of a viscous boundary layer between the sheath and the plasma have been investigated.
Research Organization:
Boston Coll., Chestnut Hill, MA (USA)
OSTI ID:
7214688
Report Number(s):
COO-2714-3
Country of Publication:
United States
Language:
English

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Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700105 -- Fusion Energy-- Plasma Research-- Plasma Kinetics-Theoretical-- (-1987)
700107* -- Fusion Energy-- Plasma Research-- Instabilities
BOLTZMANN-VLASOV EQUATION
BOUNDARY LAYERS
CLOSED PLASMA DEVICES
DIFFERENTIAL EQUATIONS
EQUATIONS
HIGH-BETA PLASMA
INSTABILITY
LAYERS
MAGNETIC FIELD CONFIGURATIONS
MOTION
PLASMA
PLASMA INSTABILITY
PLASMA MICROINSTABILITIES
PLASMA SHEATH
RESEARCH PROGRAMS
ROTATION
SHEAR
THERMONUCLEAR DEVICES
THERMONUCLEAR REACTORS
TOKAMAK DEVICES
TOKAMAK TYPE REACTORS
TORMAC DEVICES