Upgraded for rapid recognition and fitting of Laue patterns from crystals with unknown orientations.

The program is a popular and easy-to-use crystallography tool for indexing and simulating X-ray Laue patterns, but its previous versions lack search functions for recognizing Laue patterns taken from crystals with unknown orientations. To overcome this obstacle, a major upgrade of the program, called , is presented with three robust search schemes implemented: (i) crystal rotation along a single diffraction vector, (ii) a look-up method to search for reflection pairs matching the interplanar angle of two selected diffraction spots, and (iii) a more efficient look-up scheme to search for reflection triplets matching three interplanar angles. Extensive tests show that all these schemes, together with the convenient graphical user interfaces and highly optimized computing algorithms, are reliable and powerful for recognizing and fitting Laue patterns of any crystal taken under any diffraction geometry.

Feasibility study of custom hip stem design based on X-ray films.

The hip stem design based upon X-ray films requires sufficient information in order to customize for the patient. If the errors are resulted from rotating angles, more X-ray films may carry out the solution. The present study aimed to realize the improvement of multiple X-ray films for hip stem design.