Proposal on LHCD Experiments in Spherical Tokamaks

A new approach for LHCD problem in spherical tokamaks (ST) is investigated, when the LH waves are slowed down in,poloidal rather than toroidal direction by a grill antenna oriented vertically. Characteristics of wave propagation are found by ray tracing technique modernized for the case of strongly...

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Bibliographic Details
Main Authors: Shcherbinin, O N, Gusakov, E Z, Dyachenko, V V, Irzak, M A, Khitrov, S A
Format: Conference Proceeding
Language:English
Subjects:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ANTENNAS
COMPUTERIZED SIMULATION
INHOMOGENEOUS PLASMA
LOWER HYBRID CURRENT DRIVE
LOWER HYBRID HEATING
PLASMA SIMULATION
RF SYSTEMS
SPHERICAL CONFIGURATION
TOKAMAK DEVICES
WAVE PROPAGATION
WAVEGUIDES
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Summary:A new approach for LHCD problem in spherical tokamaks (ST) is investigated, when the LH waves are slowed down in,poloidal rather than toroidal direction by a grill antenna oriented vertically. Characteristics of wave propagation are found by ray tracing technique modernized for the case of strongly inhomogeneous plasma in ST. RF field distribution in ST plasma was simulated by 2D full-wave code. The grill operation is analyzed in these conditions using 3D antenna code.
ISSN:0094-243X
1551-7616
DOI:10.1063/1.3273784