Analytical theory of drift waves and drift-Alfven waves in tokamaks

Journal Article · Mon Mar 12 04:00:00 EST 1979 · Phys. Rev. Lett.; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.42.708· OSTI ID:6173978

Lee, Y C; Chen, L

The collisionless drift wave and drift-Alfven wave instabilities in a sheared magnetic field are considered using the complex transformation technique of Antonsen. It is shown that no unstable bounded eigensolutions for the finite-..beta.. radial eigenmode equations exist. We also present a more general technique based on the wave-flux conservation and find, furthermore, that the convective amplification of drift waves in the electrostatic limit can be anomalously large, which could lead to enhanced transport in tokamaks.

• Research Organization: Department of Physics, University of California, Los Angles, California 90024
• OSTI ID: 6173978
• Journal Information: Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 42:11; ISSN PRLTA
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700107 -- Fusion Energy-- Plasma Research-- Instabilities
700108* -- Fusion Energy-- Plasma Research-- Wave Phenomena
CLOSED PLASMA DEVICES
COLLISIONLESS PLASMA
CONVECTIVE INSTABILITIES
DISPERSION RELATIONS
DRIFT INSTABILITY
EIGENSTATES
FLUID MECHANICS
HYDRODYNAMICS
INSTABILITY
MAGNETIC FIELDS
MAGNETOHYDRODYNAMICS
MECHANICS
PLASMA
PLASMA INSTABILITY
PLASMA MICROINSTABILITIES
PLASMA WAVES
SHEAR
THERMONUCLEAR DEVICES
TOKAMAK DEVICES