CSigma graphs: a new approach for plasma characterization in laser-induced breakdown spectroscopy

Aragón Garbizu, Carlos; Aguilera Andoaga, José Antonio

Publication:
CSigma graphs: a new approach for plasma characterization in laser-induced breakdown spectroscopy

dc.contributor.author	Aragón Garbizu, Carlos
dc.contributor.author	Aguilera Andoaga, José Antonio
dc.contributor.department	Física	es_ES
dc.contributor.department	Fisika	eu
dc.date.accessioned	2015-06-23T14:48:07Z
dc.date.available	2016-08-08T23:00:17Z
dc.date.issued	2014
dc.description.abstract	A generalization of curves of growth called CSigma (Cσ) graphs, which allows including several lines of various elements in the same ionization state at different concentrations, is proposed for laser-induced breakdown spectroscopy (LIBS) experiments. The method relies on the Boltzmann, Saha and radiative transfer equations for plasmas in local thermodynamic equilibrium. Cσ graphs are based on the calculation of a line cross section σl for each of the experimental data, starting from the atomic data of the line, the temperature and the electron density. A model of homogeneous plasma, applied separately for neutral atoms and ions, is used. A limit of validity is established for this model. Experimental Cσ graphs have been obtained using fused glass samples containing Fe, Mn, Mg, Si and Cr. By fitting experimental Cσ graphs to calculated curves, the LIBS system becomes characterized by a set of four parameters βA, Nl, T, Ne, different for neutral atoms and ions. Starting from this characterization, the intensity and self-absorption of a given spectral line of an element at a certain concentration may be predicted, provided that its atomic data are known and the limit of validity is not exceeded.	en
dc.description.sponsorship	This work has been supported by the project FIS2011-29521 of the Spanish Ministerio de Economía y Competitividad.	en
dc.embargo.lift	2016-08-08
dc.embargo.terms	2016-08-08
dc.format.mimetype	application/pdf	en
dc.identifier.doi	10.1016/j.jqsrt.2014.07.026
dc.identifier.issn	0022-4073
dc.identifier.uri	https://academica-e.unavarra.es/handle/2454/17443
dc.language.iso	eng	en
dc.publisher	Elsevier	en
dc.relation.ispartof	Journal of Quantitative Spectroscopy & Radiative Transfer 149 (2014) 90-102	en
dc.relation.projectID	info:eu-repo/grantAgreement/MICINN//FIS2011-29521/ES/	en
dc.relation.publisherversion	https://dx.doi.org/10.1016/j.jqsrt.2014.07.026
dc.rights	© 2014 Elsevier Ltd. The manuscript version is made available under the CC BY-NC-ND 4.0 license.	en
dc.rights.accessRights	info:eu-repo/semantics/openAccess
dc.rights.uri	https://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subject	Laser-induced breakdown spectroscopy	en
dc.subject	LIBS	en
dc.subject	Plasma characterization	en
dc.subject	Curves of growth	en
dc.subject	CSigma graph	en
dc.title	CSigma graphs: a new approach for plasma characterization in laser-induced breakdown spectroscopy	en
dc.type	info:eu-repo/semantics/article
dc.type.version	Versión aceptada / Onetsi den bertsioa	es
dc.type.version	info:eu-repo/semantics/acceptedVersion	en
dspace.entity.type	Publication
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