Low-n shear Alfven spectra in axisymmetric toroidal plasmas

Journal Article · Sat Nov 01 04:00:00 EST 1986 · Phys. Fluids; (United States)

OSTI ID:5208499

Cheng, C Z; Chance, M S

In toroidal plasmas, the toroidal magnetic field is nonuniform over a magnetic surface and causes coupling of different poloidal harmonics. It is shown both analytically and numerically that the toroidicity not only breaks up the shear Alfven continuous spectrum, but also creates new, discrete, toroidicity-induced shear Alfven eigenmodes with frequencies inside the continuum gaps. Potential applications of the low-n toroidicity-induced shear Alfven eigenmodes on plasma heating and instabilities are addressed.

• Research Organization: Princeton Plasma Physics Laboratory, P. O. Box 451, Princeton, New Jersey 08544
• DOE Contract Number: AC02-76CH03073
• OSTI ID: 5208499
• Journal Information: Phys. Fluids; (United States), Journal Name: Phys. Fluids; (United States) Vol. 29:11; ISSN PFLDA
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700108* -- Fusion Energy-- Plasma Research-- Wave Phenomena
ALFVEN WAVES
ANALYTICAL SOLUTION
ANNULAR SPACE
CONFIGURATION
COUPLING
HARMONICS
HEATING
HYDROMAGNETIC WAVES
INSTABILITY
MAGNETIC FIELD CONFIGURATIONS
MAGNETIC FIELDS
MAGNETIC SURFACES
NUMERICAL SOLUTION
OSCILLATIONS
PLASMA
PLASMA HEATING
PLASMA INSTABILITY
SHEAR
SPACE
SPECTRA
TOROIDAL CONFIGURATION
USES