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Figure 2
STAC graphical user interface facilitating the rotation calibration procedure. XDS indexing results from four different goniometer settings [omega(start)–kappa–phi: 0°–0°–0°, 0°–0°–20°, 0°–30°–20°, 25°–30°–20°] are used as input. The results of rotation calibration are presented in axis–angle representation using the Cambridge laboratory frame convention (Powell et al., 2013BB30), as implemented at the ESRF. Calculated rotation angles show good agreement with the input motor movements requested. Also note that the angular difference between the calculated direction vectors of the Phi and Kappa axes is 23.9966°, which is in a good agreement with the nominal alpha value of the miniKappa design equal to 24°.

Journal logoJOURNAL OF
APPLIED
CRYSTALLOGRAPHY
ISSN: 1600-5767
Volume 51| Part 5| October 2018| Pages 1421-1427
https://doi.org/10.1107/S1600576718010956
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