Structure is determined using neutron diffraction (ND). The structure factor, S(Q), describes scattered neutrons of the beam in terms of the wave-vector transfer, Q, where Q = 4nsin0/X, and 0 is the angle of the scattered neutrons with X being the incident-neutron wavelength. For a single crystal, the scattering will consist of Bragg peaks. In an ideal powder sample, small crystallites are randomly oriented and scattering from a particular set of lattice planes corresponds to the scattering obtained by turning a single crystal. In powder samples, Debye-Scherrer cones are obtained in place of Bragg peaks, where intensity from the cones can be determined simultaneously using large-area detector arrays.