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

Single grating method for low dose 1-D and 2-D phase contrast X-ray imaging

NázevTitle
Single grating method for low dose 1-D and 2-D phase contrast X-ray imagingSingle grating method for low dose 1-D and 2-D phase contrast X-ray imaging
Druh výsledkuResult type
Článek v časopiseJournal article
AutořiAuthors
F. Krejčí, J. Jakůbek, M. Kroupa
Klíčová slovaKeywords
X-ray radiography and digital radiography, Inspection with x-rays, X-ray detector, Image reconstruction in medical imaging
DOIDOI
10.1088/1748-0221/6/01/C01073
Časopis / citaceJournal / citation
Journal of Instrumentation 6(01), C01073-C01073 (2011) · ISSN 1748-0221
RokYear
2011
JazykLanguage
eng
ZáznamyRecords
ProjektProject
Využití radionuklidů a ionizujícího zářeníApplication of radionuclides and ionising radiation; Příprava, modifikace a charakterizace materiálů energetickým zářenímPreparation, Modification and Characterization of Materials by Energetic Radiation
CitovánoCited by
18 (OpenAlex)
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Plný text (open access)Full text (open access)
https://iopscience.iop.org/article/10.1088/1748-0221/6/01/C01073/pdf
Citace ke staženíDownload citation
TXT · BibTeX

AbstraktAbstract

X-ray phase contrast imaging using a single absorption grating and a hybrid semiconductor pixel detector is a newly introduced approach with great potential for application in medicine, biology and material research. In comparison with a conventional grating interferometer technique, which requires a multiple-exposure (phase-stepping) procedure, our method is greatly simplified, because both phase gradient and absorption images are obtained from just one exposure. Consequently, the approach can significantly reduce the time-consuming scanning and also possibly the dose. Examples of application of the approach as an imaging tool for investigations in biology are presented. Particularly, we present the extension of our 1-D single grating method to a two-direction sensitive technique. In a single exposure, phase gradient images in two perpendicular directions together with the conventional attenuation image are produced. Results of the proof-of-concept experiment are presented.

X-ray phase contrast imaging using a single absorption grating and a hybrid semiconductor pixel detector is a newly introduced approach with great potential for application in medicine, biology and material research. In comparison with a conventional grating interferometer technique, which requires a multiple-exposure (phase-stepping) procedure, our method is greatly simplified, because both phase gradient and absorption images are obtained from just one exposure. Consequently, the approach can significantly reduce the time-consuming scanning and also possibly the dose. Examples of application of the approach as an imaging tool for investigations in biology are presented. Particularly, we present the extension of our 1-D single grating method to a two-direction sensitive technique. In a single exposure, phase gradient images in two perpendicular directions together with the conventional attenuation image are produced. Results of the proof-of-concept experiment are presented.

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