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Time-Resolved Laser-Induced Breakdown Spectroscopy of Iron Ore

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Abstract:

Laser-induced plasmas are highly transient phenomena, lasting for several microseconds. The lines of a plasma spectrum do not appear simultaneously, and, furthermore, they exist for a range of lifetimes. Time-resolved laser-induced breakdown spectroscopy (TRELIBS) has been shown to be effective in increasing the line-to-background ratios of spectra. The results of time-resolved spectroscopy of the excimer laser-induced plasmas of iron ore are presented. The period of the plasma lifetime which is optimum for spectrochemical analysis of ore was determined.

Keywords: Atomic emission; Iron ore; Laser-induced plasma; Time-resolution

Document Type: Research Article

DOI: http://dx.doi.org/10.1366/0003702904417508

Affiliations: 1: Centre for Industrial Laser Applications, School of Physics, University of New South Wales, Kensington, NSW 2031, Australia; present address: Electronics Research Laboratory, Defence Science and Technology Organisation, P.O. Box 1600, Salisbury, SA 5108, Australia 2: Centre for Industrial Laser Applications, School of Physics, University of New South Wales, Kensington, NSW 2031, Australia 3: Centre for Industrial Laser Applications, School of Physics, University of New South Wales, Kensington, NSW 2031, Australia; present address: Ontario Hydro Research Division, Kipling Ave., Toronto, Ontario M8Z 5S4, Canada

Publication date: December 1, 1990

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