Electron cyclotron emission from tokamak plasmas with mildly superthermal electrons

Journal Article · Tue Jul 01 04:00:00 EDT 1980 · Phys. Fluids; (United States)

DOI:https://doi.org/10.1063/1.863147· OSTI ID:5207276

Fidone, I; Granata, G; Meyer, R L; Jornada, E H; Schneider, R S; Ziebell, L F

The emission of cyclotron radiation from a tokamak plasma in the presence of a high toroidal current is investigated. For the fundamental frequency, a theory of the radiation which consistently includes the hot plasma polarization effects is developed. The high current density electron system is described by a distribution function which is the sum of two Maxwellian functions representing the body of the electron population and a small fraction of superthermal drifting electrons, respectively. The emission of the ordinary and extraordinary modes in the equatorial plane of the torus for quasi-perpendicular propagation is investigated numerically. It is found that the radiation temperature deduced from the emission of radiation on the high B/sub t/ side of the torus differs from that on the low B/sub t/ side, where B/sub t/ is the confining magnetic field.

• Research Organization: Association Euratom-CEA Sur la Fusion, Departement de Recherches sur la Fusion Controlee, Centre d'Etudes Nucleaires, 92260 Fontenay-aux-Roses, France
• OSTI ID: 5207276
• Journal Information: Phys. Fluids; (United States), Journal Name: Phys. Fluids; (United States) Vol. 23:7; ISSN PFLDA
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700108* -- Fusion Energy-- Plasma Research-- Wave Phenomena
ANNULAR SPACE
BOLTZMANN STATISTICS
BREMSSTRAHLUNG
CLOSED PLASMA DEVICES
CONFIGURATION
CURRENTS
CYCLOTRON HARMONICS
CYCLOTRON RADIATION
DISPERSION RELATIONS
DISTRIBUTION FUNCTIONS
ELECTRIC CURRENTS
ELECTROMAGNETIC RADIATION
ELECTRONS
ELEMENTARY PARTICLES
ENERGY RANGE
FERMIONS
HARMONICS
LEPTONS
NUMERICAL SOLUTION
OSCILLATIONS
PLASMA
POLARIZATION
RADIATIONS
RELATIVISTIC RANGE
RUNAWAY ELECTRONS
THERMONUCLEAR DEVICES
TOKAMAK DEVICES
TOROIDAL CONFIGURATION
WKB APPROXIMATION