Ideal ballooning MHD modes in toroidal magnetic confinement systems with shear

Journal Article · Tue Mar 01 04:00:00 EST 1983 · Sov. J. Plasma Phys. (Engl. Transl.); (United States)

OSTI ID:5471357

Mikhailovskii, A B; Demchenko, V V; Omel'chenko, A Y

A formalism is developed for studying ballooning modes for a broad range of equilibrium toroidal magnetic configurations with shear, including tokamaks with a cross-sectional area of arbitrary shape, closed confinement systems with a three-dimensional magnetic axis, and various stellarators with helical windings. A condition is derived for the stability of ballooning modes in a simple system with a three-dimensional magnetic axis: a helical column. At a fixed plasma pressure there is a certain value of the shear at which the ballooning modes become less dangerous than perturbations of the Mercier type.

• Research Organization: I. V. Kurchatov Institute of Atomic Energy, Moscow
• OSTI ID: 5471357
• Journal Information: Sov. J. Plasma Phys. (Engl. Transl.); (United States), Journal Name: Sov. J. Plasma Phys. (Engl. Transl.); (United States) Vol. 9:2; ISSN SJPPD
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700107* -- Fusion Energy-- Plasma Research-- Instabilities
ANNULAR SPACE
BALLOONING INSTABILITY
CLOSED PLASMA DEVICES
CONFIGURATION
FLUID MECHANICS
HYDRODYNAMICS
INSTABILITY
MAGNETIC FIELD CONFIGURATIONS
MAGNETOHYDRODYNAMICS
MECHANICS
PLASMA INSTABILITY
PLASMA MACROINSTABILITIES
SHEAR
SPACE
STABILIZATION
THERMONUCLEAR DEVICES
TOKAMAK DEVICES
TOROIDAL CONFIGURATION