Wide-cone angle phase-contrast X-ray computed tomography of synthetic polymer materials

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389013%3A_____%2F20%3A00532960" target="_blank" >RIV/61389013:_____/20:00532960 - isvavai.cz</a>
Alternative codes found
RIV/00216305:26620/20:PU137751
Result on the web
<a href="https://ieeexplore.ieee.org/document/9094587" target="_blank" >https://ieeexplore.ieee.org/document/9094587</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1109/TIM.2020.2995232" target="_blank" >10.1109/TIM.2020.2995232</a>

Result language
angličtina
Original language name
Wide-cone angle phase-contrast X-ray computed tomography of synthetic polymer materials
Original language description
X-ray phase-contrast imaging (PCI) is sensitive to the phase shift of X-rays induced by the sample. This is advantageous for low X-ray absorption samples, such as polymers, biomaterials, tissues, and scaffolds. We show propagation-based phase-contrast X-ray computed tomography (CT) imaging [propagation-based imaging (PBI)] in a specific configuration with the wide-cone angle (>50°), polychromatic X-ray source, and a flat-panel detector. We demonstrate PBI on measurements with a polymer composite. The experiments show a tradeoff between high signal-to-noise ratio (SNR) acquisition at very large cone angles and low-SNR acquisition at large propagation distances. The degree of data quality improvement by phase retrieval increases for high propagation distances. We show the application of PBI on macroporous synthetic hydrogels, which represents an important type of material with a complex 3-D morphology in the field of polymer science. With the use of the above-described experimental configuration, it is possible to visualize the hydrogels and segment the structure of the sample in tomographic data. The segmented sample can be used for morphology characterization, such as the description of internal space or determination of specific surface area (SSA).
Czech name
—
Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10404 - Polymer science

Project
<a href="/en/project/TN01000008" target="_blank" >TN01000008: Center of electron and photonic optics</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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