End-Flux Peaking Experiment in the ZED-2 Reactor using CANFLEX-RU
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Abstract
This paper describes an end-flux peaking experiment performed in the Zero Energy Deuterium reactor (ZED-2) that provides data appropriate for validating code predictions used for qualification of CANFLEX-RU fuel in CANDU®. The experiment involved the substitution of 7 channels of CANFLEX-RU test assemblies into a natural uranium driver lattice, with a ‘demountable’ CANFLEX-RU bundle positioned in the centre of the central RU channel. Copper foils positioned between adjacent fuel pellets within the demountable bundle were used to derive end-flux peaking factors appropriate for CANFLEX-RU fuel.
Experimental results are presented and compared to predictions from the reactor physics code MCNP.
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