Stability analysis of the ion-temperature-gradient-driven mode in noncircular tokamak geometry

Journal Article · Sun May 01 04:00:00 EDT 1994 · Physics of Plasmas; (United States)

DOI:https://doi.org/10.1063/1.870759· OSTI ID:6692786

Guo, S C; Romanelli, F ^[1]

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1. Associazione EURATOM-ENEA sulla Fusione, C.R.E. Frascati, C.P. 65, 00044, Frascati, Roma (Italy)

The tokamak shaping effects on the toroidal branch of the ion-temperature-gradient-driven mode in the long wavelength limit ([ital k][sup 2][sub [chi]][rho][sup 2][sub [ital i]][much lt][epsilon][sup 1/2][sub [ital T]]) are studied. A model equilibrium with noncircular cross section is employed, where elongation, Shafranov shift, and triangularity are all taken into account. It is shown that each Fourier term in the expansion of the equilibrium magnetic field is associated with a new branch of the dispersion relation.

• OSTI ID: 6692786
• Journal Information: Physics of Plasmas; (United States), Journal Name: Physics of Plasmas; (United States) Vol. 1:5; ISSN PHPAEN; ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700340* -- Plasma Waves
Oscillations
& Instabilities-- (1992-)
ANNULAR SPACE
CLOSED CONFIGURATIONS
CLOSED PLASMA DEVICES
CONFIGURATION
EIGENFUNCTIONS
FUNCTIONS
INSTABILITY
ION TEMPERATURE
MAGNETIC FIELD CONFIGURATIONS
PLASMA INSTABILITY
PLASMA MACROINSTABILITIES
SOUND WAVES
SPACE
TEMPERATURE GRADIENTS
THERMONUCLEAR DEVICES
TOKAMAK DEVICES
TOROIDAL CONFIGURATION