title: Abel inversion applied to a small set of emission data from a microwave plasma.
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.
authors.affiliation: Grupo de Espectroscopía de Plasmas, Edificio Einstein (C-2) planta baja, Campus de Rabanales, Universidad de Córdoba, 14071 Córdoba, Spain.
authors.forename: A
authors.initials: A
authors.lastname: Sáinz
authors.forename: A
authors.initials: A
authors.lastname: Díaz
authors.forename: D
authors.initials: D
authors.lastname: Casas
authors.forename: M
authors.initials: M
authors.lastname: Pineda
authors.forename: F
authors.initials: F
authors.lastname: Cubillo
authors.forename: M D
authors.initials: MD
authors.lastname: Calzada
mesh_terms: D000465:Algorithms; D005583:Fourier Analysis; D005740:Gases / Q000032:analysis* / Q000737:chemistry*; D006358:Hot Temperature; D008872:Microwaves; D013054:Spectrophotometry, Atomic / Q000295:instrumentation / Q000379:methods* / Q000706:statistics & numerical data*
chemical_list: D005740:Gases