Stability of multihelical tearing modes in shaped tokamaks

Journal Article · Mon Aug 30 00:00:00 EDT 1982 · Phys. Rev. Lett.; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.49.654· OSTI ID:6766101

Kerner, W; Tasso, H

The stability of multihelical tearing modes in tokamaks with shaped cross sections is determined numerically. The method allows inclusion of a large number of singular surfaces resolved with high accuracy. Poloidal and radial couplings are discussed and the convergence is well understood. Modes of high poloidal m number are found to be unstable for typical equilibria. Completely stable current distributions have been constructed for D-shaped plasmas.

• Research Organization: Max-Planck-Institut fuer Plasmaphysik, EURATOM Association, D-8046 Garching, Federal Republic of Germany
• OSTI ID: 6766101
• Journal Information: Phys. Rev. Lett.; (United States), Vol. 49:9
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
PLASMA
DISTRIBUTION FUNCTIONS
STABILIZATION
TOKAMAK DEVICES
TEARING INSTABILITY
DISTURBANCES
HARMONICS
MAGNETIC FIELDS
NUMERICAL SOLUTION
SHAPE
THEORETICAL DATA
CLOSED PLASMA DEVICES
DATA
FUNCTIONS
INFORMATION
INSTABILITY
NUMERICAL DATA
OSCILLATIONS
PLASMA INSTABILITY
PLASMA MACROINSTABILITIES
THERMONUCLEAR DEVICES
700107* - Fusion Energy- Plasma Research- Instabilities