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231225s2021 xx |||||o 00| ||eng c |
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|a 10.1107/S160057752100477X
|2 doi
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|a pubmed24n1091.xml
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|a (NLM)34212879
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|a DE-627
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|e rakwb
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|a eng
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| 100 |
1 |
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|a Kim, Chan
|e verfasserin
|4 aut
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| 245 |
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|a The influence of strain on image reconstruction in Bragg coherent X-ray diffraction imaging and ptychography
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|c 2021
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| 336 |
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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| 338 |
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Revised 07.11.2023
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a open access.
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|a A quantitative analysis of the effect of strain on phase retrieval in Bragg coherent X-ray diffraction imaging is reported. It is shown in reconstruction simulations that the phase maps of objects with strong step-like phase changes are more precisely retrieved than the corresponding modulus values. The simulations suggest that the reconstruction precision for both phase and modulus can be improved by employing a modulus homogenization (MH) constraint. This approach was tested on experimental data from a highly strained Fe-Al crystal which also features antiphase domain boundaries yielding characteristic π phase shifts of the (001) superlattice reflection. The impact of MH is significant and this study outlines a successful method towards imaging of strong phase objects using the next generation of coherent X-ray sources, including X-ray free-electron lasers
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|a Journal Article
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|a Bragg ptychography
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|a anti-phase domain boundary
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| 650 |
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|a coherent X-ray diffraction imaging
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4 |
|a modulus homogenization
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| 650 |
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4 |
|a strong phase object
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| 700 |
1 |
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|a Scholz, Markus
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Madsen, Anders
|e verfasserin
|4 aut
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| 773 |
0 |
8 |
|i Enthalten in
|t Journal of synchrotron radiation
|d 1994
|g 28(2021), Pt 4 vom: 01. Juli, Seite 1159-1165
|w (DE-627)NLM09824129X
|x 1600-5775
|7 nnns
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| 773 |
1 |
8 |
|g volume:28
|g year:2021
|g number:Pt 4
|g day:01
|g month:07
|g pages:1159-1165
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| 856 |
4 |
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|u http://dx.doi.org/10.1107/S160057752100477X
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|d 28
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|h 1159-1165
|