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Figure 1
Pixel splitting improves assignment of areas of the detector into the appropriate (2θ,χ) bin during integration. (a) No splitting. Here only the pixels with their center within a (2θ,χ) bin are assigned entirely to said bin. (b) Method employed by PyFAI. Here the analytical area of the trapeze spanned by the azimuthal lines fall into the bin, yet it does not take into account the curvature of the arc. Pixel splitting by super-sampling (c) 3 or (d) 20 times in both cardinal directions. This is the method employed by MatFRAIA. The red area shows which part of the detector will be included in the resulting (2θ,χ) bin.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 29| Part 6| November 2022| Pages 1420-1428
https://doi.org/10.1107/S1600577522008232
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