Semicollisional drift-tearing modes in toroidal plasmas

Journal Article · Sun Jun 01 04:00:00 EDT 1986 · Phys. Fluids; (United States)

DOI:https://doi.org/10.1063/1.865618· OSTI ID:5870109

Hahm, T S; Chen, L

Semicollisional drift-tearing modes are studied analytically in toroidal plasmas. Corresponding differential equations for the eigenmodes are derived via the ballooning mode representation and flux-surface averaging. A dispersion relation is then obtained using asymptotic matching. It is found that the stabilizing effects of good average curvature and finite plasma compression lead to a tearing instability threshold ..delta../sub c/, which is independent of the resistivity.

• Research Organization: Institute for Fusion Studies, The University of Texas at Austin, Austin, Texas 78712-1068
• DOE Contract Number: AC02-76CH03073
• OSTI ID: 5870109
• Journal Information: Phys. Fluids; (United States), Journal Name: Phys. Fluids; (United States) Vol. 29:6; ISSN PFLDA
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700107* -- Fusion Energy-- Plasma Research-- Instabilities
ANALYTICAL SOLUTION
ANNULAR SPACE
BALLOONING INSTABILITY
COLLISIONAL PLASMA
COMPRESSION
CONFIGURATION
DIFFERENTIAL EQUATIONS
DISPERSION RELATIONS
DRIFT INSTABILITY
EIGENVALUES
ENERGY
EQUATIONS
INSTABILITY
MAGNETIC FIELD CONFIGURATIONS
MAGNETIC FLUX
MAGNETIC SURFACES
PLASMA
PLASMA INSTABILITY
PLASMA MACROINSTABILITIES
PLASMA MICROINSTABILITIES
SPACE
STABILIZATION
TEARING INSTABILITY
THRESHOLD ENERGY
TOROIDAL CONFIGURATION