CERT will also perform transport experiments with quantified uncertainties for the purposes of validating multiscale models, yielding experimental estimates of our numerical errors, and providing high-fidelity benchmark results to the thermal radiation transport community.
Experiments in the high-energy density laboratory physics (HEDLP) regime require multiphysics modeling, which makes it difficult to discern the origins of simulation/experiment disagreements. CERT will avoid the need for HEDLP experiments by performing surrogate neutron transport experiments, exploiting the strong analogy between thermal radiation transport and neutron transport. The single-physics nature of these experiments enables the use of hierarchical uncertainty quantification techniques to cleanly differentiate sources of error and uncertainty in a way that is not possible with HEDP experiments.
