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Figure 10
Spectra extraction of the refractive index decrement and absorption index. (a) Definition of the ROI using the mouse cursor to extract spectra. (b) Calculated spectrum related to phase shift within the defined ROI. (c) Calculated spectrum related to absorption within the defined ROI. (d) Comparison between two normalized absorption spectra of nickel. The blue and red normalized spectra are obtained using X-ray spectral ptychography and conventional X-ray spectroscopy, respectively.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 31| Part 2| March 2024| Pages 399-408
https://doi.org/10.1107/S160057752400016X
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