Objective: Study of the long-term irradiation behaviour of Cr-coated accident-tolerant cladding materials in the representative operating environment of a commercial nuclear reactor.

Facilities: Temelin Nuclear Power Plant and UJV Rez and CVR hot cells (Czechia).

Core Group: ALVEL, CVR and UJV REZ (Czechia), Framatome (France), Westinghouse (Sweden), KNFC (Korea), ENSI (Switzerland), EPRI (US).

Member Area (password protected)

Material Cluster Assemblies Accident Tolerant Fuel (MCA-ATF) is dedicated to the study of the long-term irradiation behaviour of Cr-coated accident-tolerant cladding materials provided by four different vendors in the representative operating environment of a commercial PWR nuclear reactor. The JEEP will generate highly irradiated material for further PIE studies of different accident-tolerant cladding concepts and advanced materials. Two identical (twin) MCA-ATF assemblies will be irradiated for 14 and ~ 30 months in the core of Temelin Nuclear Power Plant (2025-2028). The irradiated material will be removed from the power plant and transferred to hot cells in 2028 and 2030, respectively. PIE would be performed during the period from 2028 to 2032.