Caesium and iodine release from spent mixed oxide fuels under repository relevant conditions: Initial leaching results-Reference-Cited by-同舟云学术

Caesium and iodine release from spent mixed oxide fuels under repository relevant conditions: Initial leaching results

Published:2022-02-09 Issue:5-6 Volume:7 Page:100-104
ISSN:2059-8521
Container-title:MRS Advances
language:en
Short-container-title:MRS Advances

Author:

Schreinemachers Christian^ORCID,Leinders Gregory^ORCID,Mennecart Thierry^ORCID,Cachoir Christelle^ORCID,Lemmens Karel^ORCID,Verwerft Marc^ORCID,Brandt Felix^ORCID,Deissmann Guido^ORCID,Modolo Giuseppe^ORCID,Bosbach Dirk^ORCID

Abstract

AbstractAutoclave leaching experiments are conducted on three well-characterised, irradiated, and cladded mixed oxide fuel-rod segments with burnups ranging from 29 GWd/tHM to 52 GWd/tHM to investigate the instant release fraction of fission gases and long-lived fission products and to assess the long-term fuel matrix corrosion. The segments are exposed to bicarbonate solutions as reference groundwater at neutral pH and a synthetic young cementitious water at pH 13.5 under reducing atmosphere (4 vol% H2 in Ar at 40 bar pressure), since 2018. The initial leaching results for the fission products caesium and iodine as representative elements of the instant release fraction were found to depend on the leachate composition as well as on the fuel burnup. Graphical abstract

Funder

Forschungszentrum Jülich GmbH

Publisher

Springer Science and Business Media LLC

Subject

Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics,General Materials Science

Link

https://link.springer.com/content/pdf/10.1557/s43580-022-00220-7.pdf

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