neutron flux

Neutron flux refers to the rate at which neutrons pass through a given area. Neutrons are uncharged particles with a mass slightly greater than that of a proton. They are a fundamental component of atomic nuclei and play a crucial role in nuclear processes like fission and fusion.1

Neutron flux is a key concept in nuclear reactors and particle physics. It is often symbolized by nv (neutron density n times average speed v) and measured in neutrons per square centimeter per second. The interaction of neutrons with nuclei depends on their velocity and the target material. These interactions can include scattering, absorption, or capture, leading to the formation of new elements or radioactive decay. Neutron diffraction, fission, and fusion are also extraordinary interactions of neutrons.21