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Document type:
journal article 
Author(s):
Epple, Franz M, FM; Ehn, Sebastian, S; Thibault, Pierre, P; Koehler, Thomas, T; Potdevin, Guillaume, G; Herzen, Julia, J; Pennicard, David, D; Graafsma, Heinz, H; Noël, Peter B, PB; Pfeiffer, Franz, F 
Title:
Phase unwrapping in spectral X-ray differential phase-contrast imaging with an energy-resolving photon-counting pixel detector. 
Abstract:
Grating-based differential phase-contrast imaging has proven to be feasible with conventional X-ray sources. The polychromatic spectrum generally limits the performance of the interferometer but benefit can be gained with an energy-sensitive detector. In the presented work, we employ the energy-discrimination capability to correct for phase-wrapping artefacts. We propose to use the phase shifts, which are measured in distinct energy bins, to estimate the optimal phase shift in the sense of maxim...    »
 
Journal title abbreviation:
IEEE Trans Med Imaging 
Year:
2015 
Journal volume:
34 
Journal issue:
Pages contribution:
816-23 
Language:
eng 
Print-ISSN:
0278-0062 
TUM Institution:
Institut für Radiologie