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Figure 3
The calibration interface on MuscleX-DI. The module uses pyFAI to start with default settings and silver behenate as a default calibrant. Upon loading the diffraction pattern from the calibrant (silver behenate in this case), the user is prompted to select at least five spots on the calibrant's first order diffraction peak (i.e. the reflection that marks the principal repeat). The program will then fit a new ring, and calculate the sample-to-detector distance. A detector is selected manually (defaults to the mar165 CCD). Additionally, the interface also allows users to enter these parameters manually, as shown in Panel B of the figure.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 33| Part 1| January 2026| Pages 246-257
https://doi.org/10.1107/S1600577525010859
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