How do neutrons interact with reactor materials?

Many applications rely on global theoretical models of how neutrons interact with nuclei over a wide range of incident neutron energies. These applications range from energy production to homeland security to medical treatments. Scientists develop these models by comparing calculations with experimental data. Excellent agreement between data and theory indicates that the interaction between the neutron and the material is well understood. This process helps scientists gain confidence in their understanding of the nuclear force, and it helps engineers develop safer and more efficient reactors and scanners.