Microtomography with photon counting detectors: improving the quality of tomographic reconstruction by voxel-space oversampling

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00023272%3A_____%2F17%3A10133802" target="_blank" >RIV/00023272:_____/17:10133802 - isvavai.cz</a>
Alternative codes found
RIV/68407700:21460/17:00308631 RIV/68407700:21670/17:00308631
Result on the web
<a href="http://dx.doi.org/10.1088/1748-0221/12/01/C01060" target="_blank" >http://dx.doi.org/10.1088/1748-0221/12/01/C01060</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1088/1748-0221/12/01/C01060" target="_blank" >10.1088/1748-0221/12/01/C01060</a>

Result language
angličtina
Original language name
Microtomography with photon counting detectors: improving the quality of tomographic reconstruction by voxel-space oversampling
Original language description
Photon counting detectors Timepix are known for their unique properties enabling X-ray imaging with extremely high contrast-to-noise ratio. Their applicability has been recently further improved since a dedicated technique for assembling large area Timepix detector arrays was introduced. Despite the fact that the sensitive area of Timepix detectors has been significantly increased, the pixel pitch is kept unchanged (55 microns). This value is much larger compared to widely used and popular X-ray imaging cameras utilizing scintillation crystals and CCD-based read-out. On the other hand, photon counting detectors provide steeper point-spread function. Therefore, with given effective pixel size of an acquired radiography, Timepix detectors provide higher spatial resolution than X-ray cameras with scintillation-based devices unless the image is affected by penumbral blur. In this paper we take an advance of steep PSF of photon counting detectors and test the possibility to improve the quality of computed tomography reconstruction using finer sampling of reconstructed voxel space. The achieved results are presented in comparison with data acquired under the same conditions using a commercially available state-of-the-art CCD X-ray camera.
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
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OECD FORD branch
10506 - Paleontology

Project
<a href="/en/project/GA15-04987S" target="_blank" >GA15-04987S: Non-destructive methods as a tool for studies on diversity of Cretaceous fossil plants</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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