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LIBS Measurement in Vitrification of HLW Process Towards a Development of Online Chemical Analyses

Abstract : Research programs are currently underway in the Joint CEA-AREVA Vitrification Laboratory (LCV) to develop and optimize Laser Induced Breakdown Spectroscopy (LIBS) for nuclear waste streams analyses. The laboratory has full scale prototypes with the advantage of working on simulated inactive solutions of fission products. LIBS is an elemental chemical analysis technology that uses a short laser pulse to create a micro-plasma on the sample surface. This analytical technique offers many advantages compared to other techniques. It includes a sample preparation-free measurement and an extremely fast measurement time, from a few seconds to a few minutes. This paper presents the LIBS technique available in the laboratory. The first LIBS analyzes results of liquid samples from the off-gas treatment unit integrated on the full scale vitrification process are also presented and discussed. These complex solutions contain suspended particles and up to 30 chemical elements. A vision of an online LIBS analysis cell is also proposed with the development and associated research steps.
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Submitted on : Friday, December 13, 2019 - 2:06:19 PM
Last modification on : Tuesday, April 28, 2020 - 11:28:13 AM


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  • HAL Id : cea-02339105, version 1




C. Michel, J.-V. Guillaubez, C. Castano, S. Schuller, D. L'Hermite, et al.. LIBS Measurement in Vitrification of HLW Process Towards a Development of Online Chemical Analyses. WASTE MANAGEMENT 2018, Mar 2018, Phoenix, United States. ⟨cea-02339105⟩



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