The Thermal Scattering Law Project

Harnessing modern methods for material modeling and high-fidelity thermal scattering evaluations, the Scattering Law Project provides access to nuclear thermal scattering data from fundamental inputs to benchmark testing on key reactor and nuclear criticality materials to inspire and support the next generation of nuclear applications.

Plutonium Dioxide (PuO2)

Plutonium dioxide (PuO2) is an advanced fuels material for both thermal and fast reactors. Plutonium from spent UO2 fuel is reprocessed to a chemically stable mixed oxide (MOX) fuel form. PuO2 was modelled using ab initio lattice dynamics (AILD) methods using the VASP and PHONON codes with the thermal scattering law (TSL) calculated using FLASSH 1.0. The data files generated for PuO2 are generated assuming pure Pu-293 enriched plutonium which corresponds to the proposed reprocessed fuel types.

 

Publications

Ab Initio Evaluation of Plutonium Dioxide S(α,β) and Thermal Neutron Cross Sections

 

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