Development of the computational procedures for simulation and indexing of back-reflection Laue patterns

A method for the simulation of Laue-grams has been developed according to geometrical considerations and the equations for easy solution of the problem are given. At the same time, with the model proposed by Riquet & Bonet [J. Appl. Cryst. (1979), 12, 39-41] taken into account, an algorithm has been developed for indexing all the experimental spots obtained by Laue back reflection of an unknown orientation of any single-crystal material. In this work, the simulation and indexing have been successfully applied to LiNbO₃ crystals.