Evaluation of Gd2O2S

dc.contributor.author	Δαυίδ, Στράτος Λ.	el
dc.contributor.author	Μιχαήλ, Χρήστος Μ.	el
dc.contributor.author	Σεφέρης, Ιωάννης Ε.	el
dc.contributor.author	Βαλαής, Ιωάννης Γ.	el
dc.contributor.author	Φούντος, Γεώργιος Π.	el
dc.date.accessioned	2015-06-09T21:21:15Z
dc.date.available	2015-06-09T21:21:15Z
dc.date.issued	2015-06-10
dc.identifier.uri	http://hdl.handle.net/11400/15621
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/S0022231315000472	en
dc.subject	Απορρόφηση ενέργειας
dc.subject	Εκπομπή φωτός
dc.subject	Μετάδοση του φωτός
dc.subject	Μαστογραφία
dc.subject	Φωσφορίζουσες
dc.subject	Φωτόνια
dc.subject	Energy absorption
dc.subject	Light emission
dc.subject	Light--Transmission
dc.subject	Mammography
dc.subject	Phosphors
dc.subject	Photons
dc.title	Evaluation of Gd2O2S	en
heal.type	journalArticle
heal.secondaryTitle	pr granular phosphor properties for x-ray mammography imaging	en
heal.classification	Τεχνολογία
heal.classification	Ακτινολογία, Ιατρική
heal.classification	Technology
heal.classification	Radiology, Medical
heal.classificationURI	N/A-Τεχνολογία
heal.classificationURI	N/A-Ακτινολογία, Ιατρική
heal.classificationURI	http://id.loc.gov/authorities/subjects/sh85133147
heal.classificationURI	http://id.loc.gov/authorities/subjects/sh85110777
heal.keywordURI	http://id.loc.gov/authorities/subjects/sh85076879
heal.keywordURI	http://id.loc.gov/authorities/subjects/sh85101117
heal.keywordURI	http://skos.um.es/unesco6/221211
heal.contributorName	Λιαπαρινός, Παναγιώτης Φ.	el
heal.contributorName	Κανδαράκης, Ιωάννης Σ.	el
heal.contributorName	Καλύβας, Νεκτάριος Ι.	el
heal.identifier.secondary	DOI: 10.1016/j.jlumin.2015.01.044
heal.language	en
heal.access	campus
heal.recordProvider	Τεχνολογικό Εκπαιδευτικό Ίδρυμα Αθήνας. Σχολή Τεχνολογικών Εφαρμογών. Τμήμα Μηχανικών Βιοϊατρικής Τεχνολογίας Τ.Ε.	el
heal.publicationDate	2014-09-07
heal.bibliographicCitation	David, S., Michail, C., Seferis, I., Valais, I., Fountos, G. et al. (2014) Evaluation of Gd2O2S: Pr granular phosphor properties for X-ray mammography imaging. Journal of Luminescence. [Online] Available from: http://www.sciencedirect.com [Accessed 09/06/2015]	en
heal.abstract	Phosphor materials are widely used in X-ray medical imaging detector applications, coupled with suitable photoreceptors. Upon the most demanding imaging modality is X-ray mammography, since the best defense against breast cancer is its early detection. A material suitable as a mammographic detector should efficiently absorb X-ray photons and transform them to optical photons, so as to minimize breast dose. The aim of the present study was to investigate the X-ray absorption efficiency and the absolute efficiency (AE), defined as the output optical photon power divided by the incident exposure, of Gd2O2S:Pr powder scintillator. For the purposes of this study, three scintillating screens with coating thicknesses, 34.1, 46.0 and 81.5mg/cm2 respectively, were prepared in our laboratory from Gd2O2S:Pr powder (Phosphor Technology, Ltd.) by sedimentation on silica substrates. The quantum detection efficiency (QDE), the energy absorption efficiency (EAE), the spectral matching factor and the absolute efficiency (AE) were evaluated for X-ray mammographic conditions. Furthermore theoretical models were utilized to investigate the optical photon transmission properties through the phosphor mass. Gd2O2S:Pr presented high X-ray absorption properties and good spectral compatibility with several photoreceptors. It may be utilized for X-ray mammographic imaging if it is put in conjunction with a sensitive photoreceptor, so as to enhance Gd2O2S:Pr light emission properties.	en
heal.publisher	Elsevier	en
heal.journalName	Journal of Luminescence	en
heal.journalType	peer-reviewed
heal.fullTextAvailability	true