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This paper lists the principles of Laser-Induced Breakdown Spectroscopy (LIBS) and gives a brief review of some research work done on its tilization in the applications of the detection of aerosols and fine particles in gaseous flows. Laser-induced breakdown spectrometry (LIBS), also referred to as laser-induced plasma spectroscopy, is one of the new spectroscopy techniques developed by adopting high power, pulsed and narrow bandwidth lasers. The LIBS system is a stand-off or remote sensing technique which permits non-intrusive qualitative and quantitative  measurements. The principle of the LIBS technique is illustrated in figure (1). A pulsed laser beam is focused at the test point and produces a spark due to the high electric field. The spark generates high-density plasma which excites various atomic elements present in the focal volume.

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laser  induced  breakdown  spectroscopy  
 About This Document
 Subject Mechanical Engineering
 Category Term Paper
 Views 2291
 Downloads 390
 Added 29-07-11
 Contributor   ajayvs
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