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Abel Inversion Applied to a Small Set of Emission Data from a Microwave Plasma

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Abstract:

In this work we propose a criterion to apply the Abel inversion in the case of a small set of experimental data to be used in laboratory plasmas. The Nestor–Olsen method, spline interpolation, and Fourier transform Abel inversion have been compared in order to study the influence of statistical noise and the number of sampled data. The application of this criterion permits us to obtain a radial distribution of the plasma parameters (densities and temperatures) from the spectral line profiles emitted by the discharge. The proposed criterion has been tested using the lateral intensities of several lines emitted by a microwave helium plasma column generated at atmospheric pressure.

Keywords: ABEL INVERSION; EMISSION SPECTROSCOPY; MICROWAVE HELIUM PLASMA

Document Type: Research Article

DOI: http://dx.doi.org/10.1366/000370206776342706

Affiliations: 1: Grupo de Espectroscopía de Plasmas, Edificio Einstein (C-2) planta baja, Campus de Rabanales, Universidad de Córdoba, 14071 Córdoba, Spain 2: Grupo de Espectroscopía de Plasmas, Edificio Einstein (C-2) planta baja, Campus de Rabanales, Universidad de Córdoba, 14071 Córdoba, Spain; Laboratorio de Óptica Aplicada, Edificio Einstein (C-2) planta baja, Campus de Rabanales, Universidad de Córdoba, 14071 Córdoba, Spain

Publication date: March 1, 2006

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