Coherent Scattering Amplitudes as Determined by Neutron Diffraction

Abstract

The coherent scattering properties of nearly 60 elements or nuclides for slow neutrons have been determined by neutron diffraction techniques and are summarized in the present paper. The phase of scattering and values for the coherent scattering amplitude and cross section and for the total scattering cross section are given. Pronounced differences in isotopic scattering properties have been found and many nuclides are shown to possess strong spin-dependent scattering properties. Illustrations of thermal diffuse scattering and nuclear spin incoherent scattering are given.