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231225s2021 xx |||||o 00| ||eng c |
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|a 10.1107/S1600577520013995
|2 doi
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|a eng
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|a Chalmers, M C
|e verfasserin
|4 aut
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|a Tomographic reconstruction using tilted Laue analyser-based X-ray phase-contrast imaging
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|c 2021
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|a Text
|b txt
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|a ƒaComputermedien
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|a ƒa Online-Ressource
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|a Date Completed 06.09.2021
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|a Date Revised 06.09.2021
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Analyser-based phase-contrast imaging (ABPCI) is a highly sensitive phase-contrast imaging method that produces high-contrast images of weakly absorbing materials. However, it is only sensitive to phase gradient components lying in the diffraction plane of the analyser crystal [i.e. in one dimension (1-D)]. In order to accurately account for and measure phase effects produced by the wavefield-sample interaction, ABPCI and other 1-D phase-sensitive methods must achieve 2-D phase gradient sensitivity. An inclined geometry method was applied to a Laue geometry setup for X-ray ABPCI through rotation of the detector and object about the optical axis. This allowed this traditionally 1-D phase-sensitive phase-contrast method to possess 2-D phase gradient sensitivity. Tomographic datasets were acquired over 360° of a multi-material phantom with the detector and sample tilted by 8°. The real and imaginary parts of the refractive index were reconstructed for the phantom
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|a Journal Article
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|a analyser-based imaging
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|a phase retrieval
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|a phase-contrast imaging
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|a phase-contrast tomography
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|a Kitchen, M J
|e verfasserin
|4 aut
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| 700 |
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|a Uesugi, K
|e verfasserin
|4 aut
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| 700 |
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|a Falzon, G
|e verfasserin
|4 aut
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|a Quin, P
|e verfasserin
|4 aut
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|a Pavlov, K M
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Journal of synchrotron radiation
|d 1994
|g 28(2021), Pt 1 vom: 01. Jan., Seite 283-291
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|x 1600-5775
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| 773 |
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|g volume:28
|g year:2021
|g number:Pt 1
|g day:01
|g month:01
|g pages:283-291
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|u http://dx.doi.org/10.1107/S1600577520013995
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|h 283-291
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