Light emission efficiency and imaging performance of Lu2O 3:Eu nanophosphor under X-ray radiography conditions

dc.contributor.author	Σεφέρης, Ιωάννης Ε.	el
dc.contributor.author	Μιχαήλ, Χρήστος Μ.	el
dc.contributor.author	Βαλαής, Ιωάννης Γ.	el
dc.contributor.author	Zeler, Justyna	en
dc.contributor.author	Λιαπαρίνος, Παναγιώτης Φ.	el
dc.date.accessioned	2015-06-10T13:25:14Z
dc.date.available	2015-06-10T13:25:14Z
dc.date.issued	2015-06-10
dc.identifier.uri	http://hdl.handle.net/11400/15637
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://www.sciencedirect.com/science/article/pii/S0022231314001082	en
dc.subject	Απόλυτες αποδόσεις
dc.subject	κβαντική απόδοση
dc.subject	Χαρακτηριστικά απεικόνισης
dc.subject	Απόδοση εκπομπής φωτός
dc.subject	Absolute efficiencies
dc.subject	Detective quantum efficiency
dc.subject	Imaging characteristics
dc.subject	Light emission efficiency
dc.title	Light emission efficiency and imaging performance of Lu2O 3:Eu nanophosphor under X-ray radiography conditions	en
heal.type	journalArticle
heal.secondaryTitle	comparison with Gd2O2S:Eu	en
heal.classification	Τεχνολογία
heal.classification	Ιατρική φυσική
heal.classification	Technology
heal.classification	Medical physics
heal.classificationURI	N/A-Τεχνολογία
heal.classificationURI	N/A-Ιατρική φυσική
heal.classificationURI	http://id.loc.gov/authorities/subjects/sh85133147
heal.classificationURI	http://id.loc.gov/authorities/subjects/sh85083001
heal.contributorName	Φούντος, Γεώργιος Π.	el
heal.contributorName	Καλύβας, Νεκτάριος Ι.	el
heal.contributorName	Δαυίδ, Στράτος Λ.	el
heal.contributorName	Στρωματιά, Φ.	el
heal.contributorName	Zych, Eugeniusz	en
heal.contributorName	Κανδαράκης, Ιωάννης Σ.	el
heal.contributorName	Παναγιωτάκης, Γιώργος Σ.	el
heal.identifier.secondary	DOI: 10.1016/j.jlumin.2014.02.017
heal.language	en
heal.access	campus
heal.recordProvider	Τ.Ε.Ι. Αθήνας. Σχολή Τεχνολογικών Εφαρμογών. Τμήμα Μηχανικών Βιοϊατρικής Τεχνολογίας Τ.Ε.	el
heal.publicationDate	2014-07
heal.bibliographicCitation	Seferis, I., Michail, C., Valais, I., Zeler, J., Liaparinos, P. et al. (2014) Light emission efficiency and imaging performance of Lu2O 3:Eu nanophosphor under X-ray radiography conditions: Comparison with Gd2O2S:Eu. Journal of Luminescence. [Online] 151, pp.229-234. Available from: http://www.sciencedirect.com [Accessed 10/06/2015]	en
heal.abstract	Nanocrystallic europium-activated lutetium oxide (Lu2O 3:Eu) is a strong candidate for use in digital medical imaging applications, due to its spectroscopic and structural properties. The aim of the present study was to investigate the imaging and efficiency properties of a 33.3 mg/cm2 Lu2O3:Eu scintillating screen coupled to a high resolution RadEye HR CMOS photodetector under radiographic imaging conditions. Since Lu2O3:Eu emits light in the red wavelength range, the light emission efficiency and the imaging performance were compared with results for a Gd2O2S:Eu phosphor screen. Parameters such as the Absolute Efficiency (AE), the X-ray Luminescence Efficiency (XLE), and the Detector Quantum Gain (DQG), were investigated. The imaging characteristics of Lu2O3:Eu nanophosphor screen were investigated in terms of the Modulation Transfer Function (MTF), the Normalized Noise Power Spectrum (NNPS) and the Detective Quantum Efficiency (DQE). It was found that Lu2O3:Eu nanophosphor has higher AE and XLE by a factor of 1.32 and 1.37 on average, respectively, in the whole radiographic energy range in comparison with the Gd2O2S:Eu screen. DQG was also found higher in the energy range from 50 kVp to 100 kVp and comparable thereafter. The imaging quality of Lu2O3:Eu nanophosphor coupled to the CMOS sensor was found to outmatch in any aspect in comparison with the Gd2O2S:Eu screen. These results indicate that Lu2O3:Eu nanophosphor could be considered for further research in order to be used in medical imaging applications.	en
heal.publisher	Elsevier	en
heal.journalName	Journal of Luminescence	en
heal.journalType	peer-reviewed
heal.fullTextAvailability	true