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Sensing ruthenium tetroxide Emissions : a spectroscopic study

Abstract : After the Fukushima accident, it became essential to have a way to monitor in real time the evolution of a nuclear reactor during a severe accident, in order to react efficiently and minimize the industrial, ecological and health consequences of the accident. Ruthenium is a low volatile fission product but in case of the rupture of the vessel lower head by the molten corium, the air entering into the vessel oxidizes Ru into a gaseous form RuO$_4$. To monitor the presence of RuO4 allows making a diagnosis of the core degradation and quantifying the potential release into the atmosphere. RuO$_4$ is of prime importance since it can have a significant radiological impact. Here, we present the study of the feasibility of the monitoring by an optical measurement.
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Submitted on : Tuesday, March 17, 2020 - 10:34:00 AM
Last modification on : Saturday, February 5, 2022 - 9:10:06 AM
Long-term archiving on: : Thursday, June 18, 2020 - 1:12:07 PM


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  • HAL Id : cea-02509738, version 1


V. Boudon, D. Bermejo, J. Vander Auwera, G. Ducros, S. Reymond-Laruinaz, et al.. Sensing ruthenium tetroxide Emissions : a spectroscopic study. Journées du GDRI HiResMIR, Oct 2015, Creteil, France. ⟨cea-02509738⟩



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