1 research outputs found
Field deployment of a man-portable stand-off laser-induced breakdown spectrometer: A preliminary report on the expedition to the Cumbre Vieja volcano (La Palma, Spain, 2021)
This paper reports on the expedition to the Cumbre Vieja volcano (Canary Islands, Spain) in November 2021 to
assess stand-off laser-induced breakdown spectroscopy for real-time measurements of the lava streams from a
safe point. The paper provides insight on the analytical approach to the problem, the rationale of the instrument
design and construction carried out in three weeks, the experience with the new-born instrument at the volcano
and the preliminary results. Despite the subtle spectral differences among the samples and the signal variability
induced by the strong wind gusts at site, a statistical approach to data processing such as PCA, made possible to
extract sufficient information and provide a robust classification tool.We express our sincere gratitude to the Spanish Unidad Militar de Emergencias (UME) for providing essential support, security, and expertise at the field. We would like to thank Carlos Malag Ìon (Astro- shop, M Ìalaga, Spain) for donating the telescope used in the stand-off LIBS instrument, to the personnel of the Chemical Analysis Area and the Machine Shop of the Central Facility for Research Support (SCAI-UMA) and to Profs. E.R. Losilla and A. Cabeza (Dept. QuĂmica InorgĂĄnica, CristalografĂa y MineralogĂa, UMA) and D. Marrero (Dept. FĂsica Aplicada I, UMA) for their valuable comments and advice with the surrogate samples. This work has been partially supported by the I Plan Propio de Investigaci Ìon de la Universidad de M Ìalaga, the Extraordinary Funding (RD 1078/2021, 7th December, NĂșm. 293 Sec. I. P Ìag. 150,995) and PID2020-113407RB-I00 granted by the Spanish Ministry of Science and Innovation (MICINN). Funding for open access charge: Universidad de MĂĄlaga / CBU