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Proceedings Paper

Laser microprobe emission spectrum in argon atmosphere at reduced pressure
Author(s): Qinglin Guo; Yanhong Wei; Jinzhong Chen; Sufang Huai; Baolai Liang
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Paper Abstract

In this research, we experimentally studied the spectral quality of the CUl324.7nm and Cul327.4nm lines of the copper alloy standard samples in argon atmosphere at reduced pressure by a laser microprobe emission spectral analysis (LMESA) system. Compared with the results obtained in air atmosphere with the pressure of 760Torr, the spectral quality of the lines obtained obvious improvement. As the distance between the two graphite electrodes is 4mm and the pressure is 250Torr, the intensity of the spectral lines is about 2-3 times of that in the air atmosphere and the Full-Width-at-Half-Maximum (FWHM) is nearly one third of that in the air atmosphere.

Paper Details

Date Published: 9 October 2000
PDF: 4 pages
Proc. SPIE 4221, Optical Measurement and Nondestructive Testing: Techniques and Applications, (9 October 2000); doi: 10.1117/12.402607
Show Author Affiliations
Qinglin Guo, Hebei Univ. (China)
Yanhong Wei, Hebei Univ. (China)
Jinzhong Chen, Hebei Univ. (China)
Sufang Huai, Hebei Univ. (China)
Baolai Liang, Hebei Univ. (China)


Published in SPIE Proceedings Vol. 4221:
Optical Measurement and Nondestructive Testing: Techniques and Applications
FeiJun Song; Frank Chen; Michael Y.Y. Hung; H.M. Shang, Editor(s)

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