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Modeling RF waves in spatially dispersive inhomogeneus plasma using an iterative wavelet spectral method
KTH, School of Electrical Engineering (EES), Fusion Plasma Physics.
KTH, School of Electrical Engineering (EES), Fusion Plasma Physics.
KTH, School of Electrical Engineering (EES), Fusion Plasma Physics.
2017 (English)In: EPJ Web of Conferences, EDP Sciences, 2017, Vol. 157, article id 03059Conference paper (Refereed)
Abstract [en]

The wave equation for a spatially dispersive inhomogeneous magnetized plasma is given by an integro-differential equation. The effects caused by spatial dispersion in the directions perpendicular and parallel to the magnetic field are quite different. In this study, we show how to solve the wave equation using a newly developed iterative wavelet spectral method for two cases. In the first case, the method is applied to a propagating kinetic Alfvén wave in the perpendicular direction and solved to all orders in FLR. To conserve the kinetic energy flux, first order corrections in equilibrium gradients are used in the dielectric response tensor. In the second case, we verify the method for a fast wave minority heating scenario and study the up-and downshift in the parallel wave number.

Place, publisher, year, edition, pages
EDP Sciences, 2017. Vol. 157, article id 03059
Series
EPJ Web of Conferences, ISSN 2101-6275 ; 157
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-217484DOI: 10.1051/epjconf/201715703059Scopus ID: 2-s2.0-85032624870OAI: oai:DiVA.org:kth-217484DiVA, id: diva2:1156543
Conference
22nd Topical Conference on Radio-Frequency Power in Plasmas 2017, Centre de Congres, Aix en Provence, France, 30 May 2017 through 2 June 2017
Note

QC 20171113

Available from: 2017-11-13 Created: 2017-11-13 Last updated: 2017-11-13Bibliographically approved

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Vallejos, PabloJohnson, ThomasHellsten, Torbjörn
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  • Other locale
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