Portions of this entry contributed by Stephen Nagler

Inelastic neutron scattering (INS) is the process of scattering neutrons from a specimen, accompanied by a change in energy of the neutron. Neutron beams for INS may be produced by nuclear reactors or by spallation reactions induced by accelerating charged particles into an appropriate target. After moderation, a monochromatic neutron beam can be extracted either using crystal monochromators or via time-of-flight methods.

Neutron