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Reactor Core Analysis

Reactor core analysis at ORNL is performed using traditional core diffusion (SCALE, PARCS, NESTLE, SIMULATE) and high-fidelity software (VERA) to model the coupled physics environment of advanced, commercial, and research reactors. This includes application and coupling of the reactor neutronics, thermal-hydraulics, thermomechanics and fuels, and nuclear materials software. The analyses performed at ORNL include research related to:

  • Understanding and predicting key challenges within the commercial nuclear industry, such as crud-induced power shift (CIPS) or risk of fuel failure during flexible power operation
  • Design optimization of advanced reactor concepts
  • Validation and confirmatory analysis of software and design changes for the NRC
  • Quantification of safety parameters for use in accident analysis