Influence of instrumental aberrations on the schultz technique for the measurement of pole figures

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Abstract
An experimental and theoretical investigation of the Schulz reflexion technique for measuring pole figures has shown that it is capable of giving accurate results provided the integrated intensities are measured. A detailed discussion is given of the influence of the aberrations of the optical system on the diffraction-line shapes from which it is concluded that the integrated intensities are unaffected by tilting the specimen and that, for large tilts, the vertical height of the beam is limited only by its overlap of the specimen or by lack of resolution of neighbouring diffraction lines.