#130 Neutron A neutron is one of the fundamental particles that make up matter. This uncharged particle exists in the nucleus of a typical atom, along with its positively charged counterpart, the proton. Protons and neutrons each have about the same mass, and both can exist as free particles away from the nucleus. In the universe, neutrons are abundant, making up more than half of all visible matter. Properties of Neutrons Neutrons are NEUTRAL particles. They are highly penetrating, can be used as nondestructive probes, and can be used to study samples in severe environments Neutrons have a MAGNETIC moment. They can be used to study microscopic magnetic structure, study magnetic fluctuations, and develop magnetic materials Neutrons have SPIN. They can be formed into polarized neutron beams, used to study nuclear (atomic) orientation, and used for coherent and incoherent scattering. The ENERGIES of thermal neutrons are similar to the energies of elementary excitations in solids. Both have similar molecular vibrations, lattice modes, and dynamics of atomic motion. The WAVELENGTHS of neutrons are similar to atomic spacings. They can determine structural sensitivity, structural information and atomic spacings. Properties of Neutrons Neutrons are NEUTRAL particles. They are highly penetrating, can be used as nondestructive probes, and can be used to study samples in severe environments Neutrons have a MAGNETIC moment. They can be used to study microscopic magnetic structure, study magnetic fluctuations, and develop magnetic materials Neutrons have SPIN. They can be formed into polarized neutron beams, used to study nuclear (atomic) orientation, and used for coherent and incoherent scattering. The ENERGIES of thermal neutrons are similar to the energies of elementary excitations in solids. Both have similar molecular vibrations, lattice modes, and dynamics of atomic motion. The WAVELENGTHS of neutrons are similar to atomic spacings. They can determine structural sensitivity, structural information from 10-13 to 10-4 cm, and crystal structures and atomic spacings.
Posted on: Tue, 25 Jun 2013 04:05:03 +0000
Trending Topics
Recently Viewed Topics
© 2015