About this Abstract |
Meeting |
2024 TMS Annual Meeting & Exhibition
|
Symposium
|
Accelerated Qualification of Nuclear Materials Integrating Experiments, Modeling, and Theories
|
Presentation Title |
E-11: Monte Carlo Modelling of Neutron Irradiation Displacement Damage in Uranium Mononitride (UN) Fuel When Used in A Small lead-cooled Fast Reactor |
Author(s) |
Fredrik Dehlin |
On-Site Speaker (Planned) |
Fredrik Dehlin |
Abstract Scope |
Uranium mononitride (UN) fuel is intended to be used in future advanced lead-cooled reactors to achieve a higher safety and economic performance compared with traditional reactor concepts. However, a significant qualification campaign prior to regulatory approval is expected. In this talk we discuss the modelling done to calculate the neutron induced displacement damage in the fuel during its lifecycle. Proton irradiation experiments will be performed by colleagues up to the peak displacement damage found with our modelling in order to accelerate the characterisation of irradiated fuel, and in extension speed-up the qualification process of UN. We will in this talk show how a realistic whole-core model has been set-up in the Monte Carlo neutron transport code Serpent2, and how, based on this, the total neutron displacement damage during the fuel lifecycle was estimated. Sensitivity analysis was performed by evaluating different damage energy cross-section libraries. |
Proceedings Inclusion? |
Planned: |
Keywords |
Modeling and Simulation, Nuclear Materials, Other |