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Proceedings Paper

Applications and mechanisms of laser ablation for elemental analysis of nuclear wastes and contaminated soils
Author(s): Steve C. Langford; Tom Dickinson
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Paper Abstract

Survey methods for compositional analysis of nuclear wastes and contaminated soils are under development to support characterization prior to treatment and continued monitoring during remediation. Laser ablation in conjunction with optical spectroscopy and mass spectroscopy are attractive because of the safety and convenience of minimal sample handling and very small sampling volume. However, the signal intensities in analytic applications depend sensitively on the physical state of the sample (e.g., particle morphology, defect concentration, impurities, and presence of liquids). In this work, we examine how solid and condensed state properties of the sample affect the laser-substrate interaction, and the dynamic electronic, physical, and chemical processes which ultimately generate the signals that are detected for analytic purposes.

Paper Details

Date Published: 26 November 1996
PDF: 11 pages
Proc. SPIE 2835, Advanced Technologies for Environmental Monitoring and Remediation, (26 November 1996); doi: 10.1117/12.259758
Show Author Affiliations
Steve C. Langford, Washington State Univ. (United States)
Tom Dickinson, Washington State Univ. (United States)

Published in SPIE Proceedings Vol. 2835:
Advanced Technologies for Environmental Monitoring and Remediation
Tuan Vo-Dinh, Editor(s)

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