In situ analysis of steel under reduced ambient pressure by laser-induced breakdown spectroscopy

Johannes Heitz; Johann Gruber; Nikita Arnold; Dieter Bauerle; Norbert Ramaseder; Wilfried Meyer; Johann Hochortler

doi:10.1117/12.515827

10 November 2003 In situ analysis of steel under reduced ambient pressure by laser-induced breakdown spectroscopy

Johannes Heitz, Johann Gruber, Nikita Arnold, Dieter Bauerle, Norbert Ramaseder, Wilfried Meyer, Johann Hochortler

Proceedings Volume 5120, XIV International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers; (2003) https://doi.org/10.1117/12.515827
Event: XIV International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers, 2002, Wroclow, Poland

Abstract

We report on rapid in-situ analysis of liquid and solid steel samples under reduced ambient pressure by laser-induced breakdown spectroscopy (LIBS) using a transportable system. LIBS denotes a technique where a pulsed laser beam is used to ablate small amounts of the target material. The characteristic optical emission line intensities of the excited species in the laser-generated plasma plume allow a quantitative chemical analysis of the target material. Over a wide range of parameters the expansion of the plume can be described by a generalized shock wave model. LIBS is a fast, non-contact method, which can be carried out under various atmospheric conditions allowing large working distances between the sample under investigation and the detection system. These properties make LIBS applicable to process control especially for vacuum devices used in metallurgy.

Citation Download Citation

Johannes Heitz, Johann Gruber, Nikita Arnold, Dieter Bauerle, Norbert Ramaseder, Wilfried Meyer, and Johann Hochortler "In situ analysis of steel under reduced ambient pressure by laser-induced breakdown spectroscopy", Proc. SPIE 5120, XIV International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers, (10 November 2003); https://doi.org/10.1117/12.515827

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