Noun
neutron diffraction (countable and uncountable, plural neutron diffractions)
(physics) The interference process which occurs when neutrons are scattered by the atoms within solids, liquids and gases.
Neutron diffraction has shown that the molecular geometry of these complexes is similar to hydrogen bonds, in that the bond length is very adaptable to the metal complex/hydrogen donor system. Source: Internet
Neutron diffraction is an excellent method for structure determination, although it has been difficult to obtain intense, monochromatic beams of neutrons in sufficient quantities. Source: Internet