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

The result's identifiers

  • 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>

Alternative languages

  • 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

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • OECD FORD branch

    10506 - Paleontology

Result continuities

  • 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)

Others

  • Publication year

    2017

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Journal of Instrumentation

  • ISSN

    1748-0221

  • e-ISSN

  • Volume of the periodical

    12

  • Issue of the periodical within the volume

    January

  • Country of publishing house

    GB - UNITED KINGDOM

  • Number of pages

    9

  • Pages from-to

  • UT code for WoS article

    000395768300060

  • EID of the result in the Scopus database