Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/326386
Type: Artigo
Title: A Simple Device For Lens-to-sample Distance Adjustment In Laser-induced Breakdown Spectroscopy (libs)
Author: Cortez
Juliana; Farias Filho
Benedito B.; Fontes
Laiane M.; Pasquini
Celio; Raimundo
Ivo M.
Jr.; Pimentel
Maria Fernanda; Lins Borba
Flavia de Souza
Abstract: A simple device based on two commercial laser pointers is described to assist in the analysis of samples that present uneven surfaces and/or irregular shapes using laser-induced breakdown spectroscopy (LIBS). The device allows for easy positioning of the sample surface at a reproducible distance from the focusing lens that conveys the laser pulse to generate the micro-plasma in a LIBS system, with reproducibility better than +/- 0.2 mm. In this way, fluctuations in the fluence (J cm(-2)) are minimized and the LIBS analytical signals can be obtained with a better precision even when samples with irregular surfaces are probed.
Subject: Laser-induced Breakdown Spectroscopy
Libs
Lens-to-sample Distance
Sample Positioning
Repeatability
Editor: Sage Publications Inc
Thousand Oaks
Rights: fechado
Identifier DOI: 10.1177/0003702816687571
Address: https://osapublishing.ez88.periodicos.capes.gov.br/as/abstract.cfm?uri=as-71-4-634
Date Issue: 2017
Appears in Collections:Unicamp - Artigos e Outros Documentos

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