Elemental analysis and radioactivity evaluation of aerosols generated during heating of simulated fuel debris: the urasol project in the framework of fukushima daiichi fuel debris removal - CEA - Commissariat à l’énergie atomique et aux énergies alternatives Accéder directement au contenu
Communication Dans Un Congrès Année : 2023

Elemental analysis and radioactivity evaluation of aerosols generated during heating of simulated fuel debris: the urasol project in the framework of fukushima daiichi fuel debris removal

Résumé

In order to safely remove fuel debris from the Fukushima Daiichi Nuclear Power Station (1F), it is necessary to quantitatively evaluate radioactive airborne particulate generated by the cutting of nuclear fuel debris. We fabricated Uranium-bearing simulated fuel debris (SFD) with In/Ex-Vessel compositions and evaluated physical and chemical properties of aerosols generated by heating of the SFDs. Based on these results, we estimated the isotopic composition and radioactivity of aerosols produced when 1F-Unit2 fuel debris is laser cut, which is a typical example of heating method. Plutonium, mainly 238Pu, 241Am, and 244Cm were found to be the alpha nuclide,241 Pu, 137Cs-Ba, 90Sr-Y were found to be the beta nuclide of interest.

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Matériaux
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cea-04506708 , version 1 (15-03-2024)

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Copyright (Tous droits réservés)

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Youichi Tsubota, Emmanuel Porcheron, Christophe Journeau, Jules Delacroix, Christophe Suteau, et al.. Elemental analysis and radioactivity evaluation of aerosols generated during heating of simulated fuel debris: the urasol project in the framework of fukushima daiichi fuel debris removal. ICEM2023 - International Conference on Environmental Remediation and Radioactive Waste Management, Oct 2023, Stuttgart, Germany. ICEM2023-110064, V001T03A002; 6 p., ⟨10.1115/ICEM2023-110064⟩. ⟨cea-04506708⟩
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