Studying the luminescence efficiency of Lu2O3:Eu nanophosphor material for digital X-ray imaging applications

dc.contributor.author	Καλύβας, Νεκτάριος Ι.	el
dc.contributor.author	Λιαπαρίνος, Παναγιώτης Φ.	el
dc.contributor.author	Μιχαήλ, Χρήστος Μ.	el
dc.contributor.author	Δαυίδ, Στράτος Λ.	el
dc.contributor.author	Φούντος, Γεώργιος Π.	el
dc.date.accessioned	2015-01-19T10:53:30Z
dc.date.available	2015-01-19T10:53:30Z
dc.date.issued	2015-01-19
dc.identifier.uri	http://hdl.handle.net/11400/4243
dc.rights	Αναφορά Δημιουργού-Μη Εμπορική Χρήση-Όχι Παράγωγα Έργα 3.0 Ηνωμένες Πολιτείες	*
dc.rights.uri	http://creativecommons.org/licenses/by-nc-nd/3.0/us/	*
dc.source	http://link.springer.com/	en
dc.subject	X-ray medical imaging detector applications
dc.subject	Radiographic film
dc.subject	Εφαρμογές ανιχνευτή ιατρικής απεικόνισης με ακτίνες Χ
dc.subject	Ακτινογραφικό φιλμ
dc.title	Studying the luminescence efficiency of Lu2O3:Eu nanophosphor material for digital X-ray imaging applications	en
heal.type	journalArticle
heal.classification	Medicine
heal.classification	Physics
heal.classification	Ιατρική
heal.classification	Φυσική
heal.classificationURI	http://id.loc.gov/authorities/subjects/sh00006614
heal.classificationURI	http://skos.um.es/unescothes/C02994
heal.classificationURI	N/A-Ιατρική
heal.classificationURI	N/A-Φυσική
heal.contributorName	Wójtowicz, M.	en
heal.contributorName	Zych, E.	en
heal.contributorName	Κανδαράκης, Ιωάννης Σ.	el
heal.identifier.secondary	DOI 10.1007/s00339-011-6640-5
heal.language	en
heal.access	free
heal.recordProvider	Τ.Ε.Ι. Αθήνας. Σχολή Τεχνολογικών Εφαρμογών. Τμήμα Μηχανικών Βιοϊατρικής Τεχνολογίας Τ.Ε.	el
heal.publicationDate	2011
heal.bibliographicCitation	Kalyvas, N., Liaparinos, P., Michail, C., David, S., Fountos, G., et al. (2011). Studying the luminescence efficiency of Lu2O3:Eu nanophosphor material for digital X-ray imaging applications. Applied Physics A. 106(1). pp. 131-136. Springer Verlag. Available from: http://link.springer.com [Accessed 05/11/2011]	en
heal.abstract	Scintillator materials are widely used in X-ray medical imaging detector applications, coupled with available photoreceptors like radiographic film or photoreceptors suitable for digital imaging like a-Si, charge-coupled devises (CCD), complementary metal-oxide-semiconductors (CMOS) and GaAs). In addition, scintillators can be utilized in non-medical imaging detectors such as industrial detectors for non-destructive testing (NDT) and detectors used for security purposes (i.e. airport luggage control). Image quality and dose burden in the above applications is associated with the amount of optical photons escaping the scintillator as well as the amount of optical photons captured by the photoreceptor. The former is characterized by the scintillator efficiency and the latter by the spectral matching between the emission spectrum of the scintillator and the spectral response of the photoreceptor. Recently, a scintillator material, europium-activated lutetium oxide (Lu2O3:Eu), has shown improved scintillating properties. Lu2O3:Eu samples of compact nanocrystalline non-agglomerated powder were developed in our laboratory using homogeneous precipitation from a water-toluene solution in the presence of polyvinyl alcohol as a surfactant. In order to test their light-emission properties, experimental measurements under the excitation of X-ray spectra with X-ray tube voltages between 50 kVp and 140 kVp were performed. This range of applied voltages is appropriate for X-ray radiology, NDT and security applications. Lu2O3:Eu was evaluated with respect to output yield and spectral compatibility of digital imaging photoreceptors (CCD-based, CMOS-based, amorphous silicon a:Si flat panels, ES20 and GaAs). High light yield and spectral compatibility increase the performance of the medical detector and reduce the dose burden to the personnel involved. In addition a theoretical model was used to determine the values for the Lu2O3:Eu optical photon light propagation parameters. The inverse diffusion length was found to be equal to 33 cm2/g. In addition Lu2O3:Eu was found to match well with several photoreceptors capable of digital imaging (i.e. GaAs).	en
heal.publisher	Springer Verlag	en
heal.journalName	Applied Physics A	en
heal.journalType	peer-reviewed
heal.fullTextAvailability	true