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Project

Nuclear Data Uncertainty Quantification for National Security Applications

Project Details

Funding Source
Department of Energy (DOE)

Nuclear data development has been directed and funded primarily for reactor applications. Applications in complex national security computational problems frequently rely on poor quality data. There are currently no means to quantify data uncertainties in calculated results or ways to identify nuclear data needs to improve simulation accuracy.

Covariances in all nuclear data used in analyses are developed and propagated through the computational problem. Rigorous methods are applied to determine both total uncertainty and the specific nuclear data contributing to the uncertainty.

The nuclear nonproliferation community can  quantify uncertainties in complex problems and identify priority areas for data acquisition to support specific National Nuclear Security Administration (NNSA) missions. 

ORNL has partnered with Lawrence Livermore National Laboratory (LLNL) and Los Alamos National Laboratory (LANL) on this project.