TIME-RESOLVED LASER-INDUCED BREAKDOWN SPECTROSCOPY OF IRON-ORE

被引:63
作者
GRANT, KJ [1 ]
PAUL, GL [1 ]
ONEILL, JA [1 ]
机构
[1] UNIV NEW S WALES,SCH PHYS,CTR IND LASER APPLICAT,KENSINGTON,NSW 2031,AUSTRALIA
关键词
LASER-INDUCED PLASMA; ATOMIC EMISSION; TIME-RESOLUTION; IRON ORE;
D O I
10.1366/0003702904417508
中图分类号
TH7 [仪器、仪表];
学科分类号
0804 ; 080401 ; 081102 ;
摘要
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.
引用
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页码:1711 / 1714
页数:4
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