Abstract
Evidence is mounting that potentially exploitable properties of technologically and chemically interesting crystalline materials are often attributed to local structure effects, which can be observed as modulated diffuse scattering (mDS) next to Bragg diffraction (BD). BD forms a regular, sparse grid of discrete points in diffraction space; traditionally, the information in each Bragg peak is extracted first by integration, followed by the application of the required corrections. In contrast, mDS covers expansive volumes of reciprocal space close to, or between, Bragg
reflections. For a full measurement of the diffuse scattering, multiple instrument configurations might be required, and the same point might be measured multiple times. The common integration method is not sufficient and a new, inclusive correction-plus-intensity-extraction method is in demand. In this contribution we introduce a comprehensive data analysis approach to correct and scale the full volume of scattering data in one step. Hence, we explore data treatment and data correction that includes the complete, collected reciprocal space simultaneously, using neutron time of flight (TOF) or wavelength-resolved data, collected at the Spallation Neutron Source (SNS) at Oak Ridge National Laboratory.
