Applications and mechanisms of laser ablation for elemental analysis of nuclear wastes and contaminated soils

Steve C. Langford; Tom Dickinson

doi:10.1117/12.259758

26 November 1996 Applications and mechanisms of laser ablation for elemental analysis of nuclear wastes and contaminated soils

Steve C. Langford, Tom Dickinson

Author Affiliations +

Proceedings Volume 2835, Advanced Technologies for Environmental Monitoring and Remediation; (1996) https://doi.org/10.1117/12.259758
Event: SPIE's 1996 International Symposium on Optical Science, Engineering, and Instrumentation, 1996, Denver, CO, United States

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.

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Steve C. Langford and Tom Dickinson "Applications and mechanisms of laser ablation for elemental analysis of nuclear wastes and contaminated soils", Proc. SPIE 2835, Advanced Technologies for Environmental Monitoring and Remediation, (26 November 1996); https://doi.org/10.1117/12.259758

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