INSIGHT: in situ heuristic tool for the efficient reduction of grazing-incidence X-ray scattering data

Reus, M.A.; Reb, L.K.; Kosbahn, D.P.; Roth, S.V.; Müller-Buschbaum, P.

doi:10.1107/S1600576723011159

Figure 6
Example INSIGHT workflow to extract material quantity from an azimuthal tube cut using the implemented local background subtraction method. (a) Two-dimensional GIWAXS data of perovskite quantum dots. The cut outline for the azimuthal tube cut of the 100 Bragg reflection is shown as solid red lines, and the outlines for the inner and outer tube cuts for interpolating background subtraction are shown as dashed red lines. (b) Uncorrected and background-corrected data are shown in purple and black, respectively, and the inner and outer cuts performed for interpolating the background intensity are shown in dashed and dotted red, respectively. The absence of a peak at χ ≃ 50° in the inner/outer annulus data shows no contamination with reflection signal, so no false intensity is subtracted. (c) Due to the z-axis rotational sample symmetry, the background-corrected cut data are used to create the orientation sphere. (d) To transform the signal intensity to a pole figure to quantify material amounts, the Lorentz factor $[\sin \chi]$ is needed. The material quantity and signal intensity area are individually normalized to unity.

JOURNAL OF
APPLIED
CRYSTALLOGRAPHY

ISSN: 1600-5767

Volume 57| Part 2| April 2024| Pages 509-528

https://doi.org/10.1107/S1600576723011159

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