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Propagation of lower hybrid resonance cones in tokamaks

Bellan, P. M. (1983) Propagation of lower hybrid resonance cones in tokamaks. Physics of Fluids, 26 (3). pp. 741-746. ISSN 0031-9171. http://resolver.caltech.edu/CaltechAUTHORS:BELpof83

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Abstract

The trajectory of the lower hybrid resonance cone surface is calculated for propagation in the helical magnetic field of a tokamak. The surface is found to be a deformed cone, having symmetry axis following the magnetic field helicity. By superimposing cone fields excited by adjacent, poloidally separated point sources, the field excited by a source of finite poloidal extend is deduced. For sources having large poloidal extent, the superimposed cones destructively interfere everywhere except in a small region of constructive reinforcement which is located towards the plasma center; sources having small poloidal extent excite an individual resonance cone, which extends from near the plasma center all the way to the wall. Numerical calculations are presented for Verasator, Alcator-A and -C, JFT-2, and PLT tokamak parameters.


Item Type:Article
Additional Information:Copyright © 1983 American Institute of Physics. Received 18 May 1982; accepted 9 November 1982. This work was supported by National Science Foundation Grant No. ECS-8113533. The author is an Alfred P. Sloan Foundation Fellow.
Subject Keywords:hybrid resonance, tokamak devices, trajectories, wave propagation, plasma, magnetic fields, helical configuration, numerical data, electrostatics
Record Number:CaltechAUTHORS:BELpof83
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:BELpof83
Alternative URL:http://dx.doi.org/10.1063/1.864217
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:9409
Collection:CaltechAUTHORS
Deposited By: Archive Administrator
Deposited On:20 Dec 2007
Last Modified:26 Dec 2012 09:48

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