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Figure 6
Position of the 111 reflection by peak fitting of the diffraction patterns created by image integration using the calibration parameters for: a constrained fit (§4.2.2[link]), as blue squares; and from an unconstrained fit (§4.2.3[link]), as red circles, left-hand axes for both. Standard uncertainties in fitting are shown with error bars. The expected peak position from the NIST-certified lattice constant and fit wavelength is shown as a black dashed line, also with the scale to the left. The angular width of a pixel and the fit FWHM are shown as a solid violet line and as green triangles, respectively (right-hand axis). Note that the left-hand axis is magnified by a factor of eight relative to the right-hand axis and that the largest peak position deviation corresponds to 20% of the pixel width.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 26| Part 6| November 2019| Pages 1924-1928
https://doi.org/10.1107/S1600577519013328
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