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tavassoli H, abdee S. Design and fabrication of stand-off laser-induced breakdown spectroscopy (LIBS) set-up for remote detection of materials. ICOP & ICPET _ INPC _ ICOFS 2015; 21 :1117-1120
URL: http://opsi.ir/article-1-542-en.html
URL: http://opsi.ir/article-1-542-en.html
Abstract: (3669 Views)
In this study the design and fabrication of stand-off laser-induced breakdown spectroscopy (LIBS) system in open-path configuration is discussed. The transmitter and the receiver systems in experimental setup are in non-collinear form and so, all optical aberrations are tried to be optimized as much as possible. Laser pulse is focused on the target by an adjustable Keplerian telescope and plasma light of the target is collected by a Newtonian telescope. Laser pulses with temporal length of 10 ns and energies of 80 to 180 mJ are applied for elemental analysis of materials from 20 to 35m distances. The acquired spectra of different samples by our designed system have acceptable signal to noise ratios and show the performance of this system for remote detection of materials.
Keywords: Keplerian telescope, Laser induced breakdown spectroscopy, Newtonian telescope, Remote detection.
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