Bochum 2015 – wissenschaftliches Programm
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P: Fachverband Plasmaphysik
P 15: Poster Session - Magnetic Confinement
P 15.5: Poster
Dienstag, 3. März 2015, 16:30–18:30, Foyer Audimax
Propagation and absorption of electron Bernstein waves in the linear device FLiPS — •Kirill Rumiantcev, Alf Köhn, Carsten Lechte, and Walter Kasparek — IGVP, Universität Stuttgart, Pfaffenwaldring 31, 70569, Stuttgart
In overdense plasmas the O-mode encounters a O-cutoff before being able to deposit its energy at ωce. In order to overcome this issue heating of the plasma by Bernstein waves is proposed. These electrostatic waves have no density cutoff and are strongly absorbed on harmonics of ωce. Their electrostatic nature leads to the fact that they cannot propagate in the vacuum and have to be created by a conversion process.
A linear device FLiPS is now equipped with an R-wave axial heating system and basic plasma diagnostics. The O-X-B process is experimentally studied using an oblique injection of the O-mode.
In this work we will present results of a numerical investigation of the O-X conversion process by using a full-wave time domain code and the first measurements of plasma parameters of FLiPS.