X-ray imaging with sub-micron resolution using large-area photon counting detectors Timepix

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21460%2F17%3A00319855" target="_blank" >RIV/68407700:21460/17:00319855 - isvavai.cz</a>
Alternative codes found
RIV/68407700:21670/17:00319855 RIV/00216208:11310/17:10392367
Result on the web
<a href="http://iopscience.iop.org/article/10.1088/1748-0221/12/12/C12004/" target="_blank" >http://iopscience.iop.org/article/10.1088/1748-0221/12/12/C12004/</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1088/1748-0221/12/12/C12024" target="_blank" >10.1088/1748-0221/12/12/C12024</a>

Result language
angličtina
Original language name
X-ray imaging with sub-micron resolution using large-area photon counting detectors Timepix
Original language description
As X-ray micro-CT became a popular tool for scientific purposes a number of commercially available CT systems have emerged on the market. Micro-CT systems have, therefore, become widely accessible and the number of research laboratories using them constantly increases. However, even when CT scans with spatial resolution of several micrometers can be performed routinely, data acquisition with sub- micron precision remains a complicated task. Issues come mostly from prolongation of the scan time inevitably connected with the use of nano-focus X-ray sources. Long exposure time increases the noise level in the CT projections. Furthermore, considering the sub- micron resolution even effects like source-spot drift, rotation stage wobble or thermal expansion become significant and can negatively affect the data. The use of dark-current free photon counting detectors as X-ray cameras for such applications can limit the issue of increased image noise in the data, however the mechanical stability of the whole system still remains a problem and has to be considered. In this work we evaluate the performance of a micro-CT system equipped with nano-focus X-ray tube and a large area photon counting detector Timepix for scans with effective pixel size bellow one micrometer.
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
10301 - Atomic, molecular and chemical physics (physics of atoms and molecules including collision, interaction with radiation, magnetic resonances, Mössbauer effect)

Project
<a href="/en/project/TA04011329" target="_blank" >TA04011329: Advanced techniques of X-ray radiography for life sciences and industry</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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