Abstract
Abstract
We have demonstrated for the first time that turbulent plasma density fluctuations in the edge of the DIII-D tokamak are responsible for substantial broadening of an injected microwave beam by successful quantitative comparison between experimental observations and first principles 2D full-wave simulations. The broadening of the beam has important implications for control of tokamak discharges through localized electron cyclotron deposition needed for eliminating magnetohydrodynamic instabilities. This new predictive capability is mandatory to design & operate present & future tokamaks in such a way that microwave heating schemes achieve their intended objectives.
Funder
Fusion Energy Sciences
EPSRC Centre for Doctoral Training in Science and Technology of Fusion Energy
FP7 Fusion Energy Research
Subject
Condensed Matter Physics,Nuclear and High Energy Physics
Cited by
2 articles.
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