Neutron Diffusion Modeling

This lecture delves into the physics of nuclear reactors, focusing on the diffusion of neutrons. It covers the major building blocks required to operate a nuclear power plant, including chain reactions, cross sections, and neutron balance. The instructor explains the concepts of neutron density, scalar-neutron flux, and neutron current, crucial for understanding neutron behavior in a reactor. The lecture introduces Fick's law and diffusion equations to model neutron movement, emphasizing the importance of boundary conditions. The discussion extends to the significance of neutron distribution in power generation and reactor safety, highlighting the impact on fuel burn-up and power variation during the reactor cycle.