aine atomaarse ehituse uurimis- ja mõõtemeetod, mis põhineb röntgenkiirguse difraktsioonil, experimental science determining the atomic and molecular structure of a crystal, in which the crystalline structure causes a beam of incident X-rays to diffract into many specific directions, scientific technique using X-ray, neutron, or electron diffraction on powder or microcrystalline samples for structural characterization