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Figure 8
(a) Top: the isophotes near the focus calculated by TTD when 1/d = −0.023xn 2 + 5.7xn − 8.7, where Δz and Δx are parallel and transverse to the incident beam. Bottom: the isophotes near the focus calculated by our approach when 1/d = −0.023xn 2 + 5.7xn − 8.7. (b) The intensity profiles on the best focal plane calculated by TTD and our approach when 1/d = −0.023xn 2 + 5.7xn − 8.7. From the figure, we can see that our approach and TTD yield exactly the same result.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 22| Part 4| July 2015| Pages 936-945
https://doi.org/10.1107/S1600577515006487
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