Evaluation of factors affecting the analysis of metals using laser-induced breakdown spectroscopy
Some of the main factors affecting the analysis of solid steel using laser-induced break-down spectroscopy (LIBS) have been investigated and are reported here. Pulses from an electro-optically Q-switched Nd:YAG laser were focused on steel samples to generate a high temperature plasma. The spectrally resolved plasma light was time resolved and detected using a photodiode array. The effects that changes in the lens-to-sample distance, laser pulse energy, and position of the imaging lens had on the LIBS analysis are described. These effects were minimized by ratioing the absolute element signals to adjacent Fe-lines. Calibration curves for Mn, Si, and Cr are presented and the accuracy and precision of LIBS analysis listed for several elements. 12 refs.
- Research Organization:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- DOE Contract Number:
- W-7405-ENG-36
- OSTI ID:
- 5888297
- Report Number(s):
- LA-UR-86-837; CONF-860366-4; ON: DE86008726
- Resource Relation:
- Journal Volume: 0644; Conference: SPIE technical symposium on applications of artificial intelligence, Orlando, FL, USA, 31 Mar 1986; Other Information: Portions of this document are illegible in microfiche products
- Country of Publication:
- United States
- Language:
- English
Similar Records
Detection of trace phosphorus in steel using laser-induced breakdown spectroscopy combined with laser-induced fluorescence
Laser-induced breakdown spectroscopy for remote elemental analysis of planetary surfaces