Numerical simulation of RF heating in the Alfven frequency range

Journal Article · Fri Jul 01 04:00:00 EDT 1983 · Sov. J. Plasma Phys. (Engl. Transl.); (United States)

OSTI ID:5168531

Burdo, O S; Gorin, V V; Dmitrenko, A G; Elfimov, A G

A numerical simulation has been carried out on the absorption of the RF field on nonaxisymmetric modes (m = 1, 2) in the Alfven frequency range (..cap omega../sub A/(0)<..cap omega..<<..omega../sub H/i) in a nonuniform plasma cylinder with parameters approximating those in existing tokamaks. The absorption is shown to result from conversion of the RF field produced by the helical circuit into a short-wave Alfven mode; the latter heats plasma electrons through Landau damping. Results on the radial profiles of the components of the RF field and of the absorbed power density are reported. The azimuthal propagation direction of the RF field strongly affects the absorption. This effect is attributed to gyrotropy of the plasma.

• Research Organization: Sukhumi Physicotechnical Institute; Institute of Cybernetics, Academy of Sciences of the Ukrainian SSR
• OSTI ID: 5168531
• Journal Information: Sov. J. Plasma Phys. (Engl. Transl.); (United States), Journal Name: Sov. J. Plasma Phys. (Engl. Transl.); (United States) Vol. 9:4; ISSN SJPPD
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700101* -- Fusion Energy-- Plasma Research-- Confinement
Heating
&amp; Production
ABSORPTION
ALFVEN WAVES
BOUNDARY-VALUE PROBLEMS
CLOSED PLASMA DEVICES
HEATING
HIGH-FREQUENCY HEATING
HYDROMAGNETIC WAVES
INHOMOGENEOUS PLASMA
NUMERICAL SOLUTION
PLASMA
PLASMA HEATING
STELLARATORS
THERMONUCLEAR DEVICES
TOKAMAK DEVICES