Plasma diagnostics from self-absorbed doublet lines in laser-induced breakdown spectroscopy
- D'angelo, Cristian Adrián
- Garcimuño, Mayra
- Diaz Pace, Diego Martin
- Bertuccelli, Graciela
DOIAbstract
In this paper, a generalized approach is developed and applied for plasma characterization and quantitative purposes in laser-induced breakdown spectroscopy (LIBS) experiences by employing a selected pair of spectral lines belonging to the same multiplet. It is based on the comparison between experimental ratios of line parameters and the theoretical calculus obtained under the framework of a homogeneous plasma in local thermodynamic equilibrium. The applicability of the method was illustrated by using the atomic resonance transitions 279.55–280.27 nm of Mg II, which are usually detected in laserinduced plasma (LIP) during laser ablation of many kinds of targets. The laser induced plasmas were produced using a Nd:YAG laser from a pressed pe...
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