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Figure 2
Principle diagram for calculating the size of the source PSF. (a) When the white-beam slit is fully opened, the intensity of any point on the sample comes from the contribution of each point on the entire source (black). In this case, the entire source size is the effective size. (b) When the slit size becomes smaller, the intensity comes from the contribution of each point on the effective source (red).

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 29| Part 5| September 2022| Pages 1241-1250
https://doi.org/10.1107/S1600577522007652
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