Laser induced breakdown spectroscopy on metallic alloys: Solving inhomogeneous optically thick plasmas
- D'angelo, Cristian Adrián
- Diaz Pace, Diego Martin
- Bertuccelli, Graciela
- Bertuccelli, Daniela
DOIAbstract
In this work, laser-induced breakdown spectroscopy (LIBS) has been applied to the characterization of a plasma generated on a ternary Co–Cr–Mo alloy commonly used on hip prosthesis in air at atmospheric pressure. A method to achieve analytical results without employing any reference sample was implemented within a two-region plasma picture of a hot dense core surrounded by a colder periphery, where both self-absorption and inhomogeneity effects were taken into account. High resolution spectra of three strong Co I–II lines from different regions of the plasma plume were recorded and the analysis was carried out by means of a least-squares calibration-free algorithm. In this approach, theoretical spectra were matched to the experimental line ...
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