2D modeling of electromagnetic waves in cold plasmas

K. Crombé, D. Van Eester, R. Koch, V. Kyrytsya

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Résumé

The consequences of sheath (rectified) electric fields, resulting from the different mobility of electrons and ions as a response to radio frequency (RF) fields, are a concern for RF antenna design as it can cause damage to antenna parts, limiters and other in-vessel components. As a first step to a more complete description, the usual cold plasma dielectric description has been adopted, and the density profile was assumed to be known as input. Ultimately, the relevant equations describing the wave-particle interaction both on the fast and slow timescale will need to be tackled but prior to doing so was felt as a necessity to get a feeling of the wave dynamics involved. Maxwell's equations are solved for a cold plasma in a 2D antenna box with strongly varying density profiles crossing also lower hybrid and ion-ion hybrid resonance layers. Numerical modelling quickly becomes demanding on computer power, since a fine grid spacing is required to capture the small wavelengths effects of strongly evanescent modes.

langue originaleAnglais
titreRadiofrequency Power in Plasmas - Proceedings of the 20th Topical Conference
EditeurAmerican Institute of Physics Inc.
Pages318-321
Nombre de pages4
ISBN (imprimé)9780735412101
Les DOIs
étatPublié - 2014
Evénement20th Topical Conference on Radiofrequency Power in Plasmas - Sorrento, Italie
Durée: 25 juin 201328 juin 2013

Série de publications

NomAIP Conference Proceedings
Volume1580
ISSN (imprimé)0094-243X
ISSN (Electronique)1551-7616

Une conférence

Une conférence20th Topical Conference on Radiofrequency Power in Plasmas
Pays/TerritoireItalie
La villeSorrento
période25/06/1328/06/13

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