TY  - JOUR
AU  - Schreinemachers, Christian
AU  - Leinders, Gregory
AU  - Mennecart, Thierry
AU  - Cachoir, Christelle
AU  - Lemmens, Karel
AU  - Verwerft, Marc
AU  - Brandt, Felix
AU  - Deissmann, Guido
AU  - Modolo, Giuseppe
AU  - Bosbach, Dirk
TI  - Caesium and iodine release from spent mixed oxide fuels under repository relevant conditions: Initial leaching results
JO  - MRS advances
VL  - 7
SN  - 2059-8521
CY  - Cambridge
PB  - Cambridge University Press
M1  - FZJ-2022-01300
SP  - 100-104
PY  - 2022
AB  - Autoclave leaching experiments are conducted on three well-characterised, irradiated, and cladded mixed oxide fuel-rod segments with burnups ranging from 29 GWd/t<sub>HM</sub> to 52 GWd/t<sub>HM</sub> to investigate the instant release fraction of fssion gases and long-lived fssion 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% H<sub>2</sub> in Ar at 40 bar pressure), since 2018. The initial leaching results for the fssion 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.
LB  - PUB:(DE-HGF)16
C6  - 35646392
UR  - <Go to ISI:>//WOS:000753223400003
DO  - DOI:10.1557/s43580-022-00220-7
UR  - https://juser.fz-juelich.de/record/906222
ER  -