Laser-induced plasma spectroscopy for mine detection and verification-Reference-Cited by-同舟云学术

Laser-induced plasma spectroscopy for mine detection and verification

Published:2006-06 Issue:2 Volume:24 Page:241-247
ISSN:0263-0346
Container-title:Laser and Particle Beams
language:en
Short-container-title:Laser Part. Beams

Author:

SCHADE WOLFGANG,BOHLING CHRISTIAN,HOHMANN KONRAD,SCHEEL DIRK

Abstract

Laser-induced breakdown spectroscopy (LIBS) in combination with a conventional mine prodder is applied for remote detection of explosives and mine housing materials. High power subnanosecond laser pulses (pulse powerEp= 0.6 mJ and pulse duration Δt= 650 ps) at 1064 nm with a typical repetition rate of 10 kHz are generated by using a passively Q-switched Cr4+:Nd3+:YAG microchip-laser as seed-laser for an Yb-fiber amplifier. In the present investigation, the ratios of “late” and “early” LIBS intensities for the cyanide (CN) plasma emission at 388 nm and for the C-emission at 248 nm are used for data analysis. This allows the classification of different explosives and mine casing materials under real time conditions and also similar applications to materials processing.

Publisher

Hindawi Limited

Subject

Electrical and Electronic Engineering,Condensed Matter Physics,Atomic and Molecular Physics, and Optics

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