MADISON
This experimental device has been designed for experiments focusing on the normal operating conditions (steady-state and transient conditions) of fuel in a light water reactor. For this reason, cladding failure is not expected in this device.
IFE Halden is in charge of designing the main experimental part.
This experimental device comprises an in-core section (holding the fuel samples with a fissile length of 60 cm) placed on a displacement system.
This system is used to adjust the linear power of the samples online.
Due to the high thermal neutron flux in the reflector, high linear power can be reached even with high burn-up samples (400 W/cm can be achieved with a burn-up of 80 GWd/tU and for standard UO2 fuel with an initial enrichment of 4.95%).
The JHR has been designed with a full set
of experimental devices making
it possible to conduct the experiments
needed to characterise,
select and qualify new fuels and materials.
Some of these experimental devices
are capsules while others are loops,
which makes it possible to adjust
the experimental conditions in real time
to obtain even better results.
