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Effect of density fluctuations on lower hybrid resonance cone propagation

Bellan, P. M. and Wong, K. L. (1978) Effect of density fluctuations on lower hybrid resonance cone propagation. Physics of Fluids, 21 (4). pp. 592-599. ISSN 0031-9171. https://resolver.caltech.edu/CaltechAUTHORS:BELpof78

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Abstract

Experimental measurements show that coherent, azimuthal density fluctuations (1) focus lower hybrid resonance cones azimuthally, and (2) modulate the radial location of the resonance cones. A simple theory based on wave refraction is presented; this theory is in good agreement with the experimental observations. The theory is extended to give a physical description of wave propagation through turbulent, isotropic (perpendicular to B) noise such as has been observed in tokamaks; it is found that the turbulence causes the lower hybrid wave vectors to have an angular spread in the plane perpendicular to B.


Item Type:Article
Related URLs:
URLURL TypeDescription
https://doi.org/10.1063/1.862267DOIUNSPECIFIED
ORCID:
AuthorORCID
Bellan, P. M.0000-0002-0886-8782
Additional Information:© 1978 American Institute of Physics. (Received 21 April 1977) One of the authors (P.B.) wishes to thank Dr. P.K. Kaw, Dr. M. Porkolab, and Dr. C. Surko for useful discussions. The technical assistance of J. Johnson and J. Taylor is gratefully appreciated. This work was supported by U.S. Energy Research and Development Administration Contract No. E(11-1)-3073.
Funders:
Funding AgencyGrant Number
Energy Research and Development Administration (ERDA)E(11-1)-3073
Subject Keywords:FLUCTUATIONS, WAVE PROPAGATIONS, HYBRID RESONANCE, TURBULENCE, TOKAMAK DEVICES, PLASMA DENSITY, DRIFT WAVES, BOUNDARY CONDITIONS, REFRACTION
Issue or Number:4
Record Number:CaltechAUTHORS:BELpof78
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:BELpof78
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:9358
Collection:CaltechAUTHORS
Deposited By: Archive Administrator
Deposited On:16 Dec 2007
Last Modified:02 Oct 2019 23:59

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