Laser-induced plasma characterization using line profile analysis of chromium neutral atom and ion transitions

In this paper, line profile analysis of several Cr transitions was carried out for characterization of a laser-induced plasma. The plasma was generated on a metallic alloy (nominal Cr concentration 29.7%) in air at atmospheric pressure by using an infrared Nd:YAG laser. The emission intensities of 2...

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Autor principal: Díaz Pace, D.M.
Formato: JOUR
Materias:
Inhomogeneous plasma
LIBS
Plasma characterization
Self-absorption
Atmospheric pressure
Atom lasers
Characterization
Chromium compounds
Neodymium lasers
Plasma theory
Yttrium aluminum garnet
Laser induced plasma
Line profile analysis
Self absorption
Spatial in-homogeneity
Thermodynamic equilibria
Laser produced plasmas
absorption
atmospheric pressure
chromium
electron density
experimental study
inhomogeneity
laser induced fluorescence
plasma
thermodynamics
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00224073_v129_n_p254_DiazPace
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
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spelling todo:paper_00224073_v129_n_p254_DiazPace2023-10-03T14:32:48Z Laser-induced plasma characterization using line profile analysis of chromium neutral atom and ion transitions Díaz Pace, D.M. Inhomogeneous plasma LIBS Plasma characterization Self-absorption Atmospheric pressure Atom lasers Characterization Chromium compounds Neodymium lasers Plasma theory Yttrium aluminum garnet Inhomogeneous plasma Laser induced plasma LIBS Line profile analysis Plasma characterization Self absorption Spatial in-homogeneity Thermodynamic equilibria Laser produced plasmas absorption atmospheric pressure chromium electron density experimental study inhomogeneity laser induced fluorescence plasma thermodynamics In this paper, line profile analysis of several Cr transitions was carried out for characterization of a laser-induced plasma. The plasma was generated on a metallic alloy (nominal Cr concentration 29.7%) in air at atmospheric pressure by using an infrared Nd:YAG laser. The emission intensities of 24 Cr I lines and 25 Cr II lines were measured spatially integrated along the line-of-sight with good resolution. Their line profiles were analyzed applying a computational fitting algorithm under a framework of a homogeneous plasma in thermodynamic equilibrium. The effects of self-absorption and spatial inhomogeneity were taken into account. The plasma temperature and the parameters Nl (the atom/ion concentration times the length of the plasma along the line-of-sight) were accurately determined, and the electron density was estimated. The results were properly interpreted under the employed approach, demonstrating the important influence of the issues investigated on characterizing the physical state of laser-induced plasmas. © 2013 Elsevier Ltd. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00224073_v129_n_p254_DiazPace
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Inhomogeneous plasma
LIBS
Plasma characterization
Self-absorption
Atmospheric pressure
Atom lasers
Characterization
Chromium compounds
Neodymium lasers
Plasma theory
Yttrium aluminum garnet
Inhomogeneous plasma
Laser induced plasma
LIBS
Line profile analysis
Plasma characterization
Self absorption
Spatial in-homogeneity
Thermodynamic equilibria
Laser produced plasmas
absorption
atmospheric pressure
chromium
electron density
experimental study
inhomogeneity
laser induced fluorescence
plasma
thermodynamics
spellingShingle Inhomogeneous plasma
LIBS
Plasma characterization
Self-absorption
Atmospheric pressure
Atom lasers
Characterization
Chromium compounds
Neodymium lasers
Plasma theory
Yttrium aluminum garnet
Inhomogeneous plasma
Laser induced plasma
LIBS
Line profile analysis
Plasma characterization
Self absorption
Spatial in-homogeneity
Thermodynamic equilibria
Laser produced plasmas
absorption
atmospheric pressure
chromium
electron density
experimental study
inhomogeneity
laser induced fluorescence
plasma
thermodynamics
Díaz Pace, D.M.
Laser-induced plasma characterization using line profile analysis of chromium neutral atom and ion transitions
topic_facet Inhomogeneous plasma
LIBS
Plasma characterization
Self-absorption
Atmospheric pressure
Atom lasers
Characterization
Chromium compounds
Neodymium lasers
Plasma theory
Yttrium aluminum garnet
Inhomogeneous plasma
Laser induced plasma
LIBS
Line profile analysis
Plasma characterization
Self absorption
Spatial in-homogeneity
Thermodynamic equilibria
Laser produced plasmas
absorption
atmospheric pressure
chromium
electron density
experimental study
inhomogeneity
laser induced fluorescence
plasma
thermodynamics
description In this paper, line profile analysis of several Cr transitions was carried out for characterization of a laser-induced plasma. The plasma was generated on a metallic alloy (nominal Cr concentration 29.7%) in air at atmospheric pressure by using an infrared Nd:YAG laser. The emission intensities of 24 Cr I lines and 25 Cr II lines were measured spatially integrated along the line-of-sight with good resolution. Their line profiles were analyzed applying a computational fitting algorithm under a framework of a homogeneous plasma in thermodynamic equilibrium. The effects of self-absorption and spatial inhomogeneity were taken into account. The plasma temperature and the parameters Nl (the atom/ion concentration times the length of the plasma along the line-of-sight) were accurately determined, and the electron density was estimated. The results were properly interpreted under the employed approach, demonstrating the important influence of the issues investigated on characterizing the physical state of laser-induced plasmas. © 2013 Elsevier Ltd.
format JOUR
author Díaz Pace, D.M.
author_facet Díaz Pace, D.M.
author_sort Díaz Pace, D.M.
title Laser-induced plasma characterization using line profile analysis of chromium neutral atom and ion transitions
title_short Laser-induced plasma characterization using line profile analysis of chromium neutral atom and ion transitions
title_full Laser-induced plasma characterization using line profile analysis of chromium neutral atom and ion transitions
title_fullStr Laser-induced plasma characterization using line profile analysis of chromium neutral atom and ion transitions
title_full_unstemmed Laser-induced plasma characterization using line profile analysis of chromium neutral atom and ion transitions
title_sort laser-induced plasma characterization using line profile analysis of chromium neutral atom and ion transitions
url http://hdl.handle.net/20.500.12110/paper_00224073_v129_n_p254_DiazPace
work_keys_str_mv AT diazpacedm laserinducedplasmacharacterizationusinglineprofileanalysisofchromiumneutralatomandiontransitions
_version_ 1807316899795566592

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