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Proceedings Paper

In situ analysis of steel under reduced ambient pressure by laser-induced breakdown spectroscopy
Author(s): Johannes Heitz; Johann Gruber; Nikita Arnold; Dieter Bauerle; Norbert Ramaseder; Wilfried Meyer; Johann Hochortler
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Paper 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.

Paper Details

Date Published: 10 November 2003
PDF: 8 pages
Proc. SPIE 5120, XIV International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers, (10 November 2003); doi: 10.1117/12.515827
Show Author Affiliations
Johannes Heitz, Johannes Kepler Univ. Linz (Austria)
Johann Gruber, Johannes Kepler Univ. Linz (Austria)
Nikita Arnold, Johannes Kepler Univ. Linz (Austria)
Dieter Bauerle, Johannes Kepler Univ. Linz (Austria)
Norbert Ramaseder, Voest-Alpine Industrieanlagenbau (Austria)
Wilfried Meyer, BOHLER Edelstahl (Austria)
Johann Hochortler, BOHLER Edelstahl (Austria)


Published in SPIE Proceedings Vol. 5120:
XIV International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers
Krzysztof M. Abramski; Edward F. Plinski; Wieslaw Wolinski, Editor(s)

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