Optical emission tomography: looking into plasmas with complex structures

Onderzoeksoutput: Hoofdstuk in Boek/Rapport/CongresprocedureConferentiebijdrageAcademicpeer review

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Samenvatting

Measuring the light emitted by a plasma often offers a convenient way to obtain information on the plasma properties. To procure these plasma properties, as well as their spatial distribution in a volume discharge, the local emission coefficient is required. However, the intensity recorded by a detector is a lateral scan of the emission integrated along a line-of-sight. A commonly used technique to retrieve radial dependence in case of cylindrical symmetry is Abel inversion. When the discharge structure exhibits a more complex symmetry or no symmetry at all, a more generalised approach is required: the inverse Radon transform. Since optical access from numerous angles is now required, this technique is especially applicable to discharges in open air. A brief explanation of the Radon and inverse Radon transforms is given and the reconstructed local emission coefficient of a structured volume dielectric barrier discharge (DBD) in open air is presented. Finally, the local emission coefficient is compared to the local electric field strength obtained from simulations.
Originele taal-2Engels
TitelProceedings of the 27th NNV-Symposium on Plasma Physics and Radiation Technology, 10-11 March 2015, Lunteren, The Netherlands
Aantal pagina's1
StatusGepubliceerd - 2015
Evenement27th NNV Symposium on Plasma Physics and Radiation Technology - De Werelt, Lunteren, Nederland
Duur: 10 mrt 201511 mrt 2015
http://www.plasmalunteren.nl/sites/default/files/booklet_lunteren_2015.pdf

Congres

Congres27th NNV Symposium on Plasma Physics and Radiation Technology
LandNederland
StadLunteren
Periode10/03/1511/03/15
Ander27th Symposium Plasma Physics & Radiation Technology, 10-11 March 2015, Lunteren, the Netherlands
Internet adres

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  • Citeer dit

    van der Schans, M., Sobota, A., & Kroesen, G. M. W. (2015). Optical emission tomography: looking into plasmas with complex structures. In Proceedings of the 27th NNV-Symposium on Plasma Physics and Radiation Technology, 10-11 March 2015, Lunteren, The Netherlands [O4]