CAB Models for Water: new models for the interaction of thermal neutrons in water

During the past few years we have been working at the Department of Neutron Physics at Centro At mi co Bariloche on an update of evaluation of the thermal neutron scattering law for light and heavy water. We based our approach on combining the best available experimental data with molecular dynamics simulations. With this methodology we produced a set of new thermal neutron scattering es in ENDF-6 format, that result an improvement over existing evaluations. In this talk we will present the models, a brief summary of the validation and some applications to nuclear reactor calculations