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Proceedings Paper

ST-LIBS for heavy element detection in complex matrices
Author(s): M. M. Tamboli; Unnikrishnan V. K.; Praveen Devangad; Muhammed Shameem K. M.; Santhosh C.
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Paper Abstract

Interest in the use of laser-based sensors operating in stand-off mode is increasing due to the wide range of options offered in the evaluation of distant targets. In this work, a stand-off laser induced breakdown spectroscopy (ST-LIBS) system has been developed and demonstrated to determine the heavy elements in soil samples. Initially, different parameters of the device have been optimized in ambient atmosphere and tested for quantitative analysis of Nickel and Chromium at two different stand-off distances (1 m and 6 m). The prepared concentrations were in the range of 100 ppm to 600 ppm. The laser energy of 150 mJ was maintained through out the experiment and to obtain a real time situation the target was in static state.

Paper Details

Date Published: 13 June 2017
PDF: 5 pages
Proc. SPIE 10449, Fifth International Conference on Optical and Photonics Engineering, 104492T (13 June 2017); doi: 10.1117/12.2270895
Show Author Affiliations
M. M. Tamboli, Manipal Univ. (India)
Unnikrishnan V. K., Manipal Univ. (India)
Praveen Devangad, Manipal Univ. (India)
Muhammed Shameem K. M., Manipal Univ. (India)
Santhosh C., Manipal Univ. (India)

Published in SPIE Proceedings Vol. 10449:
Fifth International Conference on Optical and Photonics Engineering
Anand Krishna Asundi, Editor(s)

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