摘要

Tables of the absorption correction A* for cylindrical and spherical crystals were calculated by the Thorkildsen & Larsen [Acta Cryst. (1998), A54, 186-190] analytical method in the range of 0 <= mu R <= 30 and 0 <= theta <= 90 degrees with accuracies of 10(-6) for cylindrical crystals and 2.0 x 10(-6) for spherical crystals. Bivariate Chebyshev polynomial fitting formulae for A* are also provided for both cases. The maximum fitting error for spherical crystals is 6 x 10(-3) and the average error ranges from 7 x 10(-5) to 3 x 10(-4). All the important tables and the fitting program are provided in the supplementary material.

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