Monitoring the plutonium depletion in dissolution residues of a spent fuel solution using a surrogate and plutonium isotope ratio measurements - Archive ouverte HAL Access content directly
Journal Articles Journal of Radioanalytical and Nuclear Chemistry Year : 2020

Monitoring the plutonium depletion in dissolution residues of a spent fuel solution using a surrogate and plutonium isotope ratio measurements

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Abstract

This study presents the development of an innovative experiment using a surrogate, for monitoring the depletion kinetics of plutonium dissolution residues in an irradiated fuel dissolution solution containing a high plutonium concentration. The surrogate, a (U,Pu)O2 compound, was synthesized from a plutonium having an isotopic composition different from the dissolution solution. This helps monitoring the plutonium residue depletion by TIMS measurements of the 240Pu/239Pu isotope ratio. Repeatability better than 83 ppm was achieved for the 240Pu/239Pu ratios in each aliquot of the dissolution profiles allowing qualitative and quantitative interpretation of the kinetic evolution that could not be reached by a conventional direct concentration determination.
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Dates and versions

cea-02932076 , version 1 (07-09-2020)

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Alexandre Quemet, Emilie Buravand, Brigitte Catanese, Patrick Huot, Vincent Dalier, et al.. Monitoring the plutonium depletion in dissolution residues of a spent fuel solution using a surrogate and plutonium isotope ratio measurements. Journal of Radioanalytical and Nuclear Chemistry, 2020, https://doi.org/10.1007/s10967-020-07311-5. ⟨10.1007/s10967-020-07311-5⟩. ⟨cea-02932076⟩
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