![]() ![]() DBB is validated for simulated X-ray Laue diffraction data. In this work, a novel method called dictionary-branch-bound (DBB) is presented to determine the crystallographic orientations of multiple crystals simultaneously illuminated by a parallel X-ray incident beam, using only the spot positions in a detector image. Existing analysis methods are designed mainly to index a single or a few Laue diffraction pattern(s) recorded in a detector image. Finally, guidelines for using DBB in experimental data are provided.ĪB - X-ray Laue diffraction is an important method for characterizing the local crystallographic orientation and elastic strain in polycrystalline materials. To demonstrate the potential of DBB further, it is applied to synchrotron microdiffraction data. In all cases except the most challenging one, a perfect indexing with a mean angular error below 0.08 degrees is obtained. Poisson noise is also added to test the sensitivity of DBB to less accurate positions of detected spots. Additionally, spots are randomly removed to test the resilience of DBB against true spots that are undetected due to background noise and/or spot overlap. Fake spots are randomly added to the detector image to test the robustness of DBB. In the simulation, up to 100 crystals with random crystallographic orientations are simultaneously illuminated. N2 - X-ray Laue diffraction is an important method for characterizing the local crystallographic orientation and elastic strain in polycrystalline materials. T1 - Indexing of superimposed Laue diffraction patterns using a dictionary-branch-bound approach Finally, guidelines for using DBB in experimental data are provided.", ![]() Finally, guidelines for using DBB in experimental data are provided.Ībstract = "X-ray Laue diffraction is an important method for characterizing the local crystallographic orientation and elastic strain in polycrystalline materials. X-ray Laue diffraction is an important method for characterizing the local crystallographic orientation and elastic strain in polycrystalline materials. ![]()
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