Emission and absorption of electron cyclotron waves in rf current sustained tokamak plasmas

Journal Article · Tue Nov 01 04:00:00 EST 1983 · Phys. Fluids; (United States)

DOI:https://doi.org/10.1063/1.864104· OSTI ID:5464209

Fidone, I; Giruzzi, G; Granata, G; Meyer, R L

Emission and absorption of electron cyclotron radiation in a tokamak plasma in the presence of a fast-electron tail is investigated. Specifically, the case in which the perpendicular temperature of the very end of the tail has a sharp rise is discussed. This situation occurs during rf current drive, and wave emission and transmission measurements may yield accurate information on the tail formation. The theory is developed for propagation in a homogeneous magnetic field and applies to the vertical direction of the tokamak. The quasilinear theory of wave absorption is also investigated. This study is motivated by the possibility of remote control of temperature anisotropy instability by electron cyclotron heating. The case of the extraordinary mode propagating from the low-magnetic-field side of the torus in the equatorial plane is numerically discussed.

• 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: 5464209
• Journal Information: Phys. Fluids; (United States), Journal Name: Phys. Fluids; (United States) Vol. 26:11; ISSN PFLDA
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700101 -- Fusion Energy-- Plasma Research-- Confinement
Heating
& Production
700108* -- Fusion Energy-- Plasma Research-- Wave Phenomena
ABSORPTION
BREMSSTRAHLUNG
CLOSED PLASMA DEVICES
CURRENT-DRIVE HEATING
CYCLOTRON RADIATION
ELECTRIC HEATING
ELECTROMAGNETIC RADIATION
ELECTRONS
ELEMENTARY PARTICLES
EMISSION
FERMIONS
HEATING
JOULE HEATING
LEPTONS
PLASMA
PLASMA HEATING
RADIATIONS
RESISTANCE HEATING
RF SYSTEMS
THERMONUCLEAR DEVICES
TOKAMAK DEVICES