SEMI-AUTOMATIC ELEMENTAL IDENTIFICATION AND QUANTIFICATION BY LASER-INDUCED BREAKDOWN SPECTROSCOPY

dc.contributorMARCO ANTONIO MENESES NAVA
dc.creatorIgnacio Raúl Rosas Román
dc.date2017-09
dc.date.accessioned2018-11-19T13:52:51Z
dc.date.available2018-11-19T13:52:51Z
dc.identifierhttp://cio.repositorioinstitucional.mx/jspui/handle/1002/213
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/2252410
dc.description"This thesis has shown the feasibility of measuring both low-frequency Raman and Laser-Induced Breakdown Spectra in a single instrument. On the other hand Elemental identification is the basis of any chemical analysis but until now, the available methodologies for processing LIBS signals required a great deal of effort to implement and not always provide adequate results. The proposed Wavelength Similarity Coefficient method could change this scenario because it is a straightforward method based in some often overlooked facts, as the temperature dependence of the spectral line relevance and the use of a simplified modeling for the plasma’s line heights. Finally, obtaining the individual emission line parameters form the measured spectrum is a fundamental step in the quantitative analysis. A new approach was introduced in this work, aimed to solve some drawbacks of the Levenberg-Marquardt method, as the convergence and line energy overestimates, which potentially leads to wrong elemental composition."
dc.formatapplication/pdf
dc.languageeng
dc.relationcitation:Rosas Román, (2017). "Semi-Automatic Elemental Identification and Quantification by Laser–Induced Breakdown Spectroscopy". Tesis de Doctorado en Ciencias (Óptica). Centro de Investigaciones en Óptica, A.C. León, Guanajuato. 110 pp.
dc.rightsinfo:eu-repo/semantics/openAccess
dc.rightshttp://creativecommons.org/licenses/by-nc-nd/4.0
dc.subjectinfo:eu-repo/classification/AUTOR/LIBS, PLASMA, CALIBRATIONFREE, PCA, ELEMENTAL IDENTIFICATION
dc.subjectinfo:eu-repo/classification/cti/1
dc.subjectinfo:eu-repo/classification/cti/22
dc.subjectinfo:eu-repo/classification/cti/2209
dc.subjectinfo:eu-repo/classification/cti/220919
dc.titleSEMI-AUTOMATIC ELEMENTAL IDENTIFICATION AND QUANTIFICATION BY LASER-INDUCED BREAKDOWN SPECTROSCOPY
dc.typeTesis
dc.coverageLeón, Guanajuato
dc.audiencegeneralPublic


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