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Structure-Dependent Doppler Broadening Using a Generalized Thermal Scattering Law
Journal of Nuclear Engineering
The thermal scattering law (TSL), i.e., S(α,β), represents the momentum and energy exchange phase space for a material. The incoherent and coherent components of the TSL correlate an atom's trajectory with itself and/or with other atoms in the lattice structure. This structural information is especially important for low energies where the wavelength of neutrons is on the order of the lattice interatomic spacing. Both thermal neutron scattering as well as low energy resonance broadening involvedoi:10.3390/jne2020013 fatcat:rconxtxkgrbgzoc3mjendo5rra