期刊
PLASMA SCIENCE & TECHNOLOGY
卷 17, 期 8, 页码 676-681出版社
IOP PUBLISHING LTD
DOI: 10.1088/1009-0630/17/8/11
关键词
laser-induced breakdown spectroscopy; stand-off; double-pulse; magnesium alloy
资金
- National Natural Science Foundation of China [61473279]
- National High-Tech Research and Development Program of China (863 Program) [2012AA040608]
- Equipment Development Programs of the Chinese Academy of Sciences [YZ201247]
In this study, a stand-off and collinear double pulse laser-induced breakdown spectroscopy (DP LIBS) system was designed, and the magnesium alloy samples at a distance of 2.5 m away from the LIBS system were measured. The effect of inter-pulse delay on spectra was studied, and the signal enhancement was observed compared to the single pulse LIBS (SP LIBS). The morphology of the ablated crater on the sample indicated a higher efficiency of surface pretreatment in DP LIBS. The calibration curves of Ytterbium (Y) and Zirconium (Zr) were investigated. The square of the correlation coefficient of the calibration curve of element Y reached up to 0.9998.
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