Excitation of slow transverse magnetic waves for plasma heating at the lower hybrid frequencies

Journal Article · Tue Mar 01 04:00:00 EST 1977 · Sov. J. Plasma Phys. (Engl. Transl.); (United States)

OSTI ID:7288345

Baranov, Y F; Shcherbinin, O N

The excitation of slow waves in a plasma is analyzed in the linear approximation. The antenna system consists of an array of waveguides which open at the level of the wall bounding the plasma. The waveguides are oriented in a manner designed to excite an E wave having a singularity at the lower hybrid resonance. The boundary conditions formulated at the plasma surface take into account the nature of the wave propagation in the inhomogeneous plasma at the periphery of the plasma configuration. The reflection coefficients and the spectra of the power absorbed by the plasma are found as functions of the number and size of the waveguides, the plasma properties, and the impedance of the chamber walls. With a large number of waveguides the spectrum of the waves capable of penetrating into the interior of the plasma turns out to be independent of the wall impedance. The optimum spectrum can also be achieved by using only two waveguides, if the metal chamber walls have the appropriate fin configuration.

• Research Organization: A. F. Ioffe Physicotechnical Institute, Academy of Sciences of the USSR, Leningrad
• OSTI ID: 7288345
• Journal Information: Sov. J. Plasma Phys. (Engl. Transl.); (United States), Journal Name: Sov. J. Plasma Phys. (Engl. Transl.); (United States) Vol. 3:2; ISSN SJPPD
• 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
BOUNDARY CONDITIONS
HEATING
HIGH-FREQUENCY HEATING
HYBRID RESONANCE
INHOMOGENEOUS PLASMA
PLASMA
PLASMA HEATING
RESONANCE
WAVE PROPAGATION
WAVEGUIDES