Abstract
Anomalous absorption in ECRH experiments due to parametric excitation of localized UH waves
Highlights
These theoretical results expanded significantly the standard theory which ignored peculiarities of a density profile and geometry of toroidal devices
The relative crisis in development of the theory was, apparently, overcome in [15, 16] pointing out to the possibility that the backscattering signal generation as well as the anomalous absorption in ion channel could be a consequence of secondary nonlinear process, that accompanies a primary low – threshold absolute parametric decay instabilities (PDIs) of a different nature
In the present paper we review recent results of the two-plasmon PDI theory development [15-24]
Summary
These theoretical results expanded significantly the standard theory which ignored peculiarities of a density profile and geometry of toroidal devices. The relative crisis in development of the theory was, apparently, overcome in [15, 16] pointing out to the possibility that the backscattering signal generation as well as the anomalous absorption in ion channel could be a consequence of secondary nonlinear process, that accompanies a primary low – threshold absolute PDI of a different nature.
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