Ponderomotive and sideband coupling effects of ion-cyclotron heating on interchange stability
Journal Article
·
· Phys. Fluids; (United States)
Two-fluid theory is used to calculate the nonlinear effect of a finite-amplitude ion-cyclotron wave on the simple interchange stability of a magnetically confined plasma. The ion-cyclotron wave nonlinearly modifies interchange stability through ponderomotive effects and coupling to sidebands of the ion-cyclotron wave. Nonlinear stability criteria for flute modes are derived. The nonuniformity and polarization of the ion-cyclotron wave significantly influence the results. A theoretical explanation for recent experimental observations in axisymmetric mirror and tandem mirror plasmas of reduced levels of magnetohydrodynamic activity in the presence of ion-cyclotron resonant heating remains elusive.
- Research Organization:
- Lawrence Livermore National Laboratory, University of California, Livermore, California 94550
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 5424380
- Journal Information:
- Phys. Fluids; (United States), Journal Name: Phys. Fluids; (United States) Vol. 28:9; ISSN PFLDA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700101 -- Fusion Energy-- Plasma Research-- Confinement
Heating
& Production
700107* -- Fusion Energy-- Plasma Research-- Instabilities
AMPLITUDES
BREMSSTRAHLUNG
CONFINEMENT
COUPLING
CYCLOTRON RADIATION
ELECTRIC POTENTIAL
ELECTROMAGNETIC RADIATION
FLUID MECHANICS
FLUTE INSTABILITY
HEATING
HIGH-FREQUENCY HEATING
HYDRODYNAMICS
ICR HEATING
INSTABILITY
LANDAU LIQUID HELIUM THEORY
MAGNETIC FIELDS
MAGNETIC MIRRORS
MAGNETOHYDRODYNAMICS
MECHANICS
MODIFICATIONS
NONLINEAR PROBLEMS
OPEN PLASMA DEVICES
PLASMA
PLASMA CONFINEMENT
PLASMA HEATING
PLASMA INSTABILITY
PLASMA MACROINSTABILITIES
RADIATIONS
RADIOWAVE RADIATION
TANDEM MIRRORS
THERMONUCLEAR DEVICES
700101 -- Fusion Energy-- Plasma Research-- Confinement
Heating
& Production
700107* -- Fusion Energy-- Plasma Research-- Instabilities
AMPLITUDES
BREMSSTRAHLUNG
CONFINEMENT
COUPLING
CYCLOTRON RADIATION
ELECTRIC POTENTIAL
ELECTROMAGNETIC RADIATION
FLUID MECHANICS
FLUTE INSTABILITY
HEATING
HIGH-FREQUENCY HEATING
HYDRODYNAMICS
ICR HEATING
INSTABILITY
LANDAU LIQUID HELIUM THEORY
MAGNETIC FIELDS
MAGNETIC MIRRORS
MAGNETOHYDRODYNAMICS
MECHANICS
MODIFICATIONS
NONLINEAR PROBLEMS
OPEN PLASMA DEVICES
PLASMA
PLASMA CONFINEMENT
PLASMA HEATING
PLASMA INSTABILITY
PLASMA MACROINSTABILITIES
RADIATIONS
RADIOWAVE RADIATION
TANDEM MIRRORS
THERMONUCLEAR DEVICES