Title :
Investigation of double-pulse laser-induced breakdown spectroscopy for analysis of the composition of solids submerged at high pressures
Author :
Takahashi, T. ; Thonton, B. ; Ura, T.
Author_Institution :
Grad. Sch. of Frontier Sci., Univ. of Tokyo, Tokyo, Japan
Abstract :
The effects of pressure on double pulse laser-induced breakdown spectroscopy (LIBS) for analysis of the composition of solids submerged in water have been investigated. It has been found that while an increase in water pressure results in an overall reduction in peak intensity and increased broadness if the observed spectra, analytically useful spectra can be observed up to 5 MPa (50 atm). The results suggest that double pulse laser-induced breakdown spectroscopy may be suitable fortextit{in situ} measurement of the chemical composition of solids submerged in lakes, rivers and shallow seas.
Keywords :
chemical variables measurement; geochemistry; high-pressure effects; hydrological techniques; lakes; measurement by laser beam; rivers; spectrochemical analysis; chemical composition; double pulse laser-induced breakdown spectroscopy; lakes; observed spectra; peak intensity; rivers; shallow seas; submerged solid composition; useful spectra analytically; water pressure; Measurement by laser beam; Pulse measurements; Solids; Spectroscopy; Steel; Surface emitting lasers; double-pulse; in-situ; laser; spectroscopy; underwater;
Conference_Titel :
Oceans, 2012
Conference_Location :
Hampton Roads, VA
Print_ISBN :
978-1-4673-0829-8
DOI :
10.1109/OCEANS.2012.6405008
