Effect of density fluctuations on lower hybrid resonance cone propagation
作者:
P. M. Bellan,
K. L. Wong,
期刊:
Physics of Fluids(00319171)
(AIP Available online 1978)
卷期:
Volume 21,
issue 4
页码: 592-599
ISSN:0031-9171
年代: 1978
DOI:10.1063/1.862267
出版商: AIP
数据来源: AIP
摘要:
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.
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