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Figure 6
(a) Shape of the ENGIN-X instrumental gauge volume, as measured by scanning a 0.25 mm thin nylon thread across the horizontal plane (xz plane in Fig. 4[link]). (b) Intensity scans along the beam, i.e. across the collimators, for the 2 mm collimator (solid symbol) and for the 4 mm collimator (open symbol). The lines are Gaussian fits to the data. (c) Intensity scans across the beam along the line passing through the centre of the IGV for 2 mm and 4 mm opening of the horizontal slits. The lines are least-squares fits to the data using error functions to describe the edges.

Journal logoJOURNAL OF
APPLIED
CRYSTALLOGRAPHY
ISSN: 1600-5767
Volume 39| Part 6| December 2006| Pages 812-825
https://doi.org/10.1107/S0021889806042245
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