Abstract
A new method of calculating the crystal orientation matrix (Umatrix) of a specified sample using two-dimensional X-ray diffraction spots that are recorded on an area detector is presented. In this way, theUmatrix is calculated using at least three two-dimensional diffraction spots of known two-dimensional indices, which provide the projection of the crystal truncation rod onto the detector. The method, in the case of surface X-ray diffraction measurements with an area detector, enables easier and faster sample alignment than the conventional method to determine theUmatrix.
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