Analysis of sodium aerosol using transversely excited atmospheric CO2 laser-induced gas plasma spectroscopy |
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| Affiliation: | 1. Research Group for Laser Probing, Japan Atomic Energy Agency, Nuclear Science and Engineering Directorate, Tokai-mura, Ibaraki-ken 311-1195, Japan;2. Department of Physics, Faculty of Education and Regional Studies, University of Fukui, Fukui 910-8507, Japan;3. Graduate School of Nuclear Power and Energy Safety Engineering, University of Fukui, Fukui 910-8597, Japan;4. Research Institute of Nuclear Engineering, University of Fukui, Fukui 910-8597, Japan;5. Department of Physics, Research Institute of Physics and Chemistry, Chonbuk National University, Chonju 561-756, Republic of Korea |
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| Abstract: | Taking advantages of the special characteristics of a transversely excited atmospheric (TEA) CO2 laser, the analysis of sodium aerosol has been successfully conducted by using laser-induced gas plasma spectroscopy (LIGPS) method. In this study, the sodium aerosol was deposited on a nickel metal plate; the metal plate functions as a subtarget to initiate a gas plasma. When a pulsed TEA CO2 laser was focused on the metal surface, a large-volume and high-temperature gas plasma was induced. The fine particles of sodium then entered into the gas plasma region to be dissociated and excited. By using this technique, a semi quantitative analysis of sodium aerosol was made. The detection limit of sodium was approximately 200 ppb. |
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| Keywords: | Analysis of sodium aerosol Laser-induced gas plasma spectroscopy (LIGPS) Subtarget |
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