Laser microprobe emission spectrum in argon atmosphere at reduced pressure

Qinglin Guo; Yanhong Wei; Jinzhong Chen; Sufang Huai; Baolai Liang

doi:10.1117/12.402607

9 October 2000 Laser microprobe emission spectrum in argon atmosphere at reduced pressure

Qinglin Guo, Yanhong Wei, Jinzhong Chen, Sufang Huai, Baolai Liang

Proceedings Volume 4221, Optical Measurement and Nondestructive Testing: Techniques and Applications; (2000) https://doi.org/10.1117/12.402607
Event: Optics and Optoelectronic Inspection and Control: Techniques, Applications, and Instruments, 2000, Beijing, China

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.

Citation Download Citation

Qinglin Guo, Yanhong Wei, Jinzhong Chen, Sufang Huai, and Baolai Liang "Laser microprobe emission spectrum in argon atmosphere at reduced pressure", Proc. SPIE 4221, Optical Measurement and Nondestructive Testing: Techniques and Applications, (9 October 2000); https://doi.org/10.1117/12.402607

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