Quasilinear saturation effects on electron cyclotron wave damping of the ordinary mode in tokamak plasmas

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

DOI:https://doi.org/10.1063/1.864105· OSTI ID:5664056

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

The quasilinear theory of electron cyclotron wave absorption for the ordinary mode propagating normal to the tokamak magnetic field is investigated. A two-dimensional initial value code has been developed to investigate the distortion of the electron momentum distribution from an initial Maxwellian. It is shown that for powers of interest for electron heating in future tokamaks, Coulomb electron collisions are not sufficient to avoid quasilinear flattening of the electron distribution; therefore, there is a reduction in the damping rate as compared to the linear case.

• Research Organization: Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
• DOE Contract Number: AC02-76CH03073
• OSTI ID: 5664056
• Journal Information: Phys. Fluids; (United States), Vol. 26:11
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
PLASMA
ENERGY ABSORPTION
TOKAMAK DEVICES
ECR HEATING
CYCLOTRON RADIATION
DAMPING
DISTRIBUTION FUNCTIONS
SATURATION
TWO-DIMENSIONAL CALCULATIONS
WAVE PROPAGATION
ABSORPTION
BREMSSTRAHLUNG
CLOSED PLASMA DEVICES
ELECTROMAGNETIC RADIATION
FUNCTIONS
HEATING
HIGH-FREQUENCY HEATING
PLASMA HEATING
RADIATIONS
THERMONUCLEAR DEVICES
700101* - Fusion Energy- Plasma Research- Confinement
Heating
& Production