Voxel size and calibration for CT measurements with a small field of view

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00177016%3A_____%2F20%3AN0000082" target="_blank" >RIV/00177016:_____/20:N0000082 - isvavai.cz</a>
Result on the web
<a href="https://www.ndt.net/search/docs.php3?id=23714" target="_blank" >https://www.ndt.net/search/docs.php3?id=23714</a>
DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Voxel size and calibration for CT measurements with a small field of view
Original language description
Dimensional tomographic measurement is influenced by many factors. To achieve metrological traceability of results, knowledge of influence factors and their effect on measurement is important. This includes knowledge of the true value of voxel size and edge detection. Phantoms used for characterization and correction of error sources are calibrated usually on tactile or optical coordinate measuring machines. The challenge here is the manufacturing and calibration of small phantoms, which can be used in the field of view approximately 1 mm and less, which is the case of tomographic devices aiming at high resolution. In this work, abilities of a nano-coordinate measuring machine (nano-CMM) SIOS NMM-1 (Nanopositioning and Nanomeasuring Machine) to calibration of a phantom for X-ray computed tomography (CT) with the small field of view and high resolution are tested.
Czech name
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Czech description
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Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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