X-ray imaging with sub-micron resolution using large-area photon counting detectors Timepix
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F17%3A10392367" target="_blank" >RIV/00216208:11310/17:10392367 - isvavai.cz</a>
Nalezeny alternativní kódy
RIV/68407700:21460/17:00319855 RIV/68407700:21670/17:00319855
Výsledek na webu
<a href="https://doi.org/10.1088/1748-0221/12/12/C12024" target="_blank" >https://doi.org/10.1088/1748-0221/12/12/C12024</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>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
X-ray imaging with sub-micron resolution using large-area photon counting detectors Timepix
Popis výsledku v původním jazyce
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.
Název v anglickém jazyce
X-ray imaging with sub-micron resolution using large-area photon counting detectors Timepix
Popis výsledku anglicky
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.
Klasifikace
Druh
J<sub>imp</sub> - Článek v periodiku v databázi Web of Science
CEP obor
—
OECD FORD obor
10505 - Geology
Návaznosti výsledku
Projekt
—
Návaznosti
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Ostatní
Rok uplatnění
2017
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
Journal of Instrumentation
ISSN
1748-0221
e-ISSN
—
Svazek periodika
12
Číslo periodika v rámci svazku
December
Stát vydavatele periodika
GB - Spojené království Velké Británie a Severního Irska
Počet stran výsledku
10
Strana od-do
—
Kód UT WoS článku
000417760800014
EID výsledku v databázi Scopus
2-s2.0-85039783408