ÚTEFČVUT Ústav technické a experimentální fyziky ČVUT v PrazeInstitute of Experimental and Applied Physics, CTU in Prague

High-contrast X-ray micro-tomography of low attenuation samples using large area hybrid semiconductor pixel detector array of 10x5 Timepix chips

NázevTitle
High-contrast X-ray micro-tomography of low attenuation samples using large area hybrid semiconductor pixel detector array of 10x5 Timepix chipsHigh-contrast X-ray micro-tomography of low attenuation samples using large area hybrid semiconductor pixel detector array of 10x5 Timepix chips
Druh výsledkuResult type
Článek v časopiseJournal article
AutořiAuthors
J. Karch, F. Krejčí, B. Bartl, J. Dudák, J. Kuba, J. Kvaček, J. Žemlička
Klíčová slovaKeywords
X-ray detector, Computerized Tomography (CT) and Computed Radiography (CR), X-ray radiography and digital radiography
DOIDOI
10.1088/1748-0221/11/01/C01073
Časopis / citaceJournal / citation
Journal of Instrumentation 11(01), C01073-C01073 (2016) · ISSN 1748-0221
RokYear
2016
JazykLanguage
eng
ZáznamyRecords
ProjektProject
Nedestruktivní metody jako nástroj pro studium diversity křídových rostlinNon-destructive methods as a tool for studies on diversity of Cretaceous fossil plants
CitovánoCited by
2 (OpenAlex)
2018: 12019: 1
Plný text (open access)Full text (open access)
https://iopscience.iop.org/article/10.1088/1748-0221/11/01/C01073/pdf
Citace ke staženíDownload citation
TXT · BibTeX

AbstraktAbstract

State-of-the-art hybrid pixel semiconductor detectors provide excellent imaging properties such as unlimited dynamic range, high spatial resolution, high frame rate and energy sensitivity. Nevertheless, a limitation in the use of these devices for imaging has been the small sensitive area of a few square centimetres. In the field of microtomography we make use of a large area pixel detector assembled from 50 Timepix edgeless chips providing fully sensitive area of 14.3 × 7.15 cm2. We have successfully demonstrated that the enlargement of the sensitive area enables high-quality tomographic measurements of whole objects with high geometrical magnification without any significant degradation in resulting reconstructions related to the chip tilling and edgeless sensor technology properties. The technique of micro-tomography with the newly developed large area detector is applied for samples formed by low attenuation, low contrast materials such a seed from Phacelia tanacetifolia, a charcoalified wood sample and a beeswax seal sample.

State-of-the-art hybrid pixel semiconductor detectors provide excellent imaging properties such as unlimited dynamic range, high spatial resolution, high frame rate and energy sensitivity. Nevertheless, a limitation in the use of these devices for imaging has been the small sensitive area of a few square centimetres. In the field of microtomography we make use of a large area pixel detector assembled from 50 Timepix edgeless chips providing fully sensitive area of 14.3 × 7.15 cm2. We have successfully demonstrated that the enlargement of the sensitive area enables high-quality tomographic measurements of whole objects with high geometrical magnification without any significant degradation in resulting reconstructions related to the chip tilling and edgeless sensor technology properties. The technique of micro-tomography with the newly developed large area detector is applied for samples formed by low attenuation, low contrast materials such a seed from Phacelia tanacetifolia, a charcoalified wood sample and a beeswax seal sample.

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