Suppression of the tearing mode by energetic ions
Journal Article
·
· Physical Review Letters; (USA)
- Department of Applied Physics, Columbia University, New York, New York 10027 (USA)
The effect of an energetic ion population on the nonlinear stability of a tearing mode of single helicity is determined using kinetic theory. A dynamical equation is derived for the magnetic-island width. It is shown that the island growth can be suppressed in a tokamak when the energetic ion-density profile peaks just outside the rational surface. Effects due to resistive interchanges and bootstrap currents are included in the model.
- OSTI ID:
- 5215315
- Journal Information:
- Physical Review Letters; (USA), Journal Name: Physical Review Letters; (USA) Vol. 63:19; ISSN PRLTA; ISSN 0031-9007
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700107* -- Fusion Energy-- Plasma Research-- Instabilities
BOOTSTRAP CURRENT
CLOSED PLASMA DEVICES
CURRENTS
DIMENSIONS
ELECTRIC CURRENTS
ENERGY
EQUATIONS
FLUTE INSTABILITY
HELICITY
INHIBITION
INSTABILITY
INTERCHANGEABILITY
ION DRIFT
KINETIC ENERGY
KINETIC EQUATIONS
MAGNETIC FIELD CONFIGURATIONS
MAGNETIC ISLANDS
NONLINEAR PROBLEMS
PARTICLE PROPERTIES
PLASMA
PLASMA DISRUPTION
PLASMA INSTABILITY
PLASMA MACROINSTABILITIES
TEARING INSTABILITY
THERMONUCLEAR DEVICES
TOKAMAK DEVICES
WIDTH
700107* -- Fusion Energy-- Plasma Research-- Instabilities
BOOTSTRAP CURRENT
CLOSED PLASMA DEVICES
CURRENTS
DIMENSIONS
ELECTRIC CURRENTS
ENERGY
EQUATIONS
FLUTE INSTABILITY
HELICITY
INHIBITION
INSTABILITY
INTERCHANGEABILITY
ION DRIFT
KINETIC ENERGY
KINETIC EQUATIONS
MAGNETIC FIELD CONFIGURATIONS
MAGNETIC ISLANDS
NONLINEAR PROBLEMS
PARTICLE PROPERTIES
PLASMA
PLASMA DISRUPTION
PLASMA INSTABILITY
PLASMA MACROINSTABILITIES
TEARING INSTABILITY
THERMONUCLEAR DEVICES
TOKAMAK DEVICES
WIDTH