Abstract

A computer code has been developed to convert X-ray diffraction data generated by Siemens X-1000 and Siemens HISTAR area detectors and INEL CPS 120 linear detectors from angular to reciprocal space. Programs have been written to visualize and analyse the resulting data using AVS (Advanced Visual Systems Inc., MA, USA). Two examples of the application ofMESOto problems in X-ray diffuse scattering are presented. Firstly, the `butterfly' associated with tweed microstructure in the high-temperature superconductor YBa2(Cu1–xMx)3O7–δ. Secondly, the `dog bone' generated by scattering off domain walls in the perovskite-like WO3.

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