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http://cio.repositorioinstitucional.mx/jspui/handle/1002/213| SEMI-AUTOMATIC ELEMENTAL IDENTIFICATION AND QUANTIFICATION BY LASER-INDUCED BREAKDOWN SPECTROSCOPY | |
| Ignacio Raúl Rosas Román | |
| MARCO ANTONIO MENESES NAVA | |
| Acceso Abierto | |
| Atribución-NoComercial-SinDerivadas | |
| LIBS, PLASMA, CALIBRATIONFREE, PCA, ELEMENTAL IDENTIFICATION | |
| "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." | |
| 2017-09 | |
| Tesis de doctorado | |
| Inglés | |
| León, Guanajuato | |
| Público en general | |
| 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. | |
| OPTICA FÍSICA | |
| Aparece en las colecciones: | DOCTORADO EN CIENCIAS (ÓPTICA) |
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| Fichero | Descripción | Tamaño | Formato | |
|---|---|---|---|---|
| 17159.pdf | Texto completo / Full text | 4.73 MB | Adobe PDF | Visualizar/Abrir |