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.

Uranium Silicide (U3Si2)

Uranium silicide (U3Si2) is a high-density uranium fuel providing improved thermal conductivity over traditional UO2 fuel. U3Si2 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 U3Si2 are generated for U-235 enrichments of 5%, 10% (LEU+), 19.75% (HALEU), 93% (HEU), and 100%, representing the range of fuel enrichments applied for U3Si2 fuel.    

 

Publications

Evaluation of Thermal Neutron Scattering Cross Section of Uranium Silicide with Ab Initio Lattice Dynamics
Evaluation of Thermal Scattering Law for U3Si2 Using Temperature-Dependent Phonon Density of States

 

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