Determination of electron temperature temporal evolution in laser-induced plasmas through Independent Component Analysis and 3D Boltzmann plot
Por:
Bredice F., Pacheco Martinez P., Sarmiento Mercado R., Sánchez-Aké C., Villagrán-Muniz M., Sirven J.B., El Rakwe M., Grifoni E., Legnaioli S., Lorenzetti G., Pagnotta S., Palleschi V.
Publicada:
1 sep 2017
Resumen:
In this paper we present the application of Independent Component
Analysis to a set of time-resolved LIBS spectra, acquired on a brass
sample at different delay times. The decomposition of the LIBS spectra
in few Independent Components with a given temporal evolution is then
exploited for obtaining the temporal evolution of the plasma electron
temperature, through the application of the three-dimensional Boltzmann
plot method recently proposed by the authors. This method allows the
determination of the electron temperature temporal evolution without any
knowledge of the spectral parameters (transition probability, degeneracy
of the levels, etc....) of the emitting lines. Only the knowledge of the
energy of the upper level of the transition is required. The reduction
of the LIBS spectral dataset to few Independent Components and
associated proportions, further simplifies the determination of the
plasma electron temperature temporal evolution, since the intensity of
the emission lines does not need to be calculated. The results obtained
are compared with the ones obtained using classical two-dimensional
Boltzmann plot approach. (C) 2017 Elsevier B.V. All rights reserved.
Filiaciones:
Bredice F.:
Ctr Invest Opt, POB 3, RA-1897 Gonnet La Plata, Argentina
Centro de Investigaciones Ópticas, P.O. Box 3, Gonnet La Plata, 1897, Argentina
Pacheco Martinez P.:
Univ Atlantico, Grp Espect Opt Emis & Laser, Barranquilla, Colombia
Grupo de Espectroscopía Óptica de Emisión y Láser, Universidad del Atlántico, Barranquilla, Colombia
Sarmiento Mercado R.:
Univ Atlantico, Grp Espect Opt Emis & Laser, Barranquilla, Colombia
Grupo de Espectroscopía Óptica de Emisión y Láser, Universidad del Atlántico, Barranquilla, Colombia
Sánchez-Aké C.:
Univ Nacl Autonoma Mexico, Lab Fotofis, Ctr Ciencias Aplicadas & Desarrollo Tecnol, Apartado Postal 70-186, Mexico City, DF, Mexico
Laboratorio de Fotofísica, Centro de Ciencias Aplicadas y Desarrollo Tecnológico, Universidad Nacional Autónoma de México, Apartado Postal 70-186, México D.F., Mexico
Villagrán-Muniz M.:
Univ Nacl Autonoma Mexico, Lab Fotofis, Ctr Ciencias Aplicadas & Desarrollo Tecnol, Apartado Postal 70-186, Mexico City, DF, Mexico
Laboratorio de Fotofísica, Centro de Ciencias Aplicadas y Desarrollo Tecnológico, Universidad Nacional Autónoma de México, Apartado Postal 70-186, México D.F., Mexico
Sirven J.B.:
Univ Paris Saclay, CEA, Den Serv Etud Analyt & Reactivite Surfaces SEARS, F-91191 Gif Sur Yvette, France
Den – Service d Etudes Analytiques et de Réactivité des Surfaces (SEARS), CEA, Université Paris-Saclay, Gif sur Yvette, F-91191, France
El Rakwe M.:
Univ Paris Saclay, CEA, Den Serv Etud Analyt & Reactivite Surfaces SEARS, F-91191 Gif Sur Yvette, France
Den – Service d Etudes Analytiques et de Réactivité des Surfaces (SEARS), CEA, Université Paris-Saclay, Gif sur Yvette, F-91191, France
Grifoni E.:
CNR, Inst Chem Organometall Cpds, Appl & Laser Spect Lab, Res Area, Via G Moruzzi 1, I-56124 Pisa, Italy
Applied and Laser Spectroscopy Laboratory, Institute of Chemistry of Organometallic Compounds, Research Area of National Research Council, Via G. Moruzzi, 1, Pisa, 56124, Italy
Legnaioli S.:
CNR, Inst Chem Organometall Cpds, Appl & Laser Spect Lab, Res Area, Via G Moruzzi 1, I-56124 Pisa, Italy
Natl Interuniv Consortium Mat Sci & Technol INSTM, Via G Giusti 9, I-50121 Florence, Italy
Applied and Laser Spectroscopy Laboratory, Institute of Chemistry of Organometallic Compounds, Research Area of National Research Council, Via G. Moruzzi, 1, Pisa, 56124, Italy
National Interuniversity Consortium of Materials Science and Technology (INSTM), Via G. Giusti, 9, Florence, 50121, Italy
Lorenzetti G.:
CNR, Inst Chem Organometall Cpds, Appl & Laser Spect Lab, Res Area, Via G Moruzzi 1, I-56124 Pisa, Italy
Applied and Laser Spectroscopy Laboratory, Institute of Chemistry of Organometallic Compounds, Research Area of National Research Council, Via G. Moruzzi, 1, Pisa, 56124, Italy
Pagnotta S.:
CNR, Inst Chem Organometall Cpds, Appl & Laser Spect Lab, Res Area, Via G Moruzzi 1, I-56124 Pisa, Italy
Applied and Laser Spectroscopy Laboratory, Institute of Chemistry of Organometallic Compounds, Research Area of National Research Council, Via G. Moruzzi, 1, Pisa, 56124, Italy
Palleschi V.:
CNR, Inst Chem Organometall Cpds, Appl & Laser Spect Lab, Res Area, Via G Moruzzi 1, I-56124 Pisa, Italy
Natl Interuniv Consortium Mat Sci & Technol INSTM, Via G Giusti 9, I-50121 Florence, Italy
Applied and Laser Spectroscopy Laboratory, Institute of Chemistry of Organometallic Compounds, Research Area of National Research Council, Via G. Moruzzi, 1, Pisa, 56124, Italy
National Interuniversity Consortium of Materials Science and Technology (INSTM), Via G. Giusti, 9, Florence, 50121, Italy
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