Efficiency of Gd2O2S: eu powder phosphor as X-ray to light converter under radiographic imaging conditions

dc.contributor.author	Μιχαήλ, Χρήστος Μ.	el
dc.contributor.author	Βαλαής, Ιωάννης Γ.	el
dc.contributor.author	Τουτουντζής, Ανδριανός Ε.	el
dc.contributor.author	Σεφέρης, Ιωάννης Ε.	el
dc.contributor.author	Γεωργούσης, Μιχάλης	el
dc.date.accessioned	2015-01-22T11:06:02Z
dc.date.available	2015-01-22T11:06:02Z
dc.date.issued	2015-01-22
dc.identifier.uri	http://hdl.handle.net/11400/4529
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	Luminescence efficiency
dc.subject	Powder phosphors
dc.subject	Αποδοτικότητα φωταύγειας
dc.subject	Φωσφορίζουσα σκόνη
dc.title	Efficiency of Gd2O2S: eu powder phosphor as X-ray to light converter under radiographic imaging conditions	en
heal.type	bookChapter
heal.generalDescription	IFMBE Proceedings	en
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	Φούντος, Γεώργιος Π.	el
heal.contributorName	Σαμαρτζής, Αναστάσιος	el
heal.contributorName	Λιαπαρίνος, Παναγιώτης Φ.	el
heal.contributorName	Κανδαράκης, Ιωάννης Σ.	el
heal.contributorName	Παναγιωτάκης, Γεώργιος Σ.	el
heal.identifier.secondary	DOI 10.1007/978-3-642-03879-2_222
heal.language	en
heal.access	free
heal.recordProvider	Τ.Ε.Ι. Αθήνας. Σχολή Τεχνολογικών Εφαρμογών. Τμήμα Μηχανικών Βιοϊατρικής Τεχνολογίας Τ.Ε.	el
heal.publicationDate	2009
heal.bibliographicCitation	Michail, C., Valais, I., Toutountzis, A., Seferis, I., Georgousis, M., et al. (2009). Efficiency of Gd2O2S: eu powder phosphor as X-ray to light converter under radiographic imaging conditions. World Congress on Medical Physics and Biomedical Engineering, September 7 - 12, 2009, Munich, Germany. 25(2). pp. 794-797. Springer Berlin Heidelberg. Available from: http://link.springer.com	en
heal.abstract	The aim of the present study was to examine the Gd2O2S:Eu powder scintillator under general X-ray Radiographic imaging conditions. For this purpose five scintillator screens with coating thicknesses 33.1, 46.4, 63.1, 78.3 and 139.8 mg/cm2 were prepared in our laboratory by sedimentation of Gd2O2S:Eu powder. Light emission efficiency and optical emission spectra of the screens were measured under X-ray excitation using X-ray tube voltages (50-140 kVp) employed in X-ray radiography. Spectral compatibility with various optical photon detectors (photodiodes, photocathodes, charge coupled devices, films) were determined using emission spectrum data. In addition, parameters related to X-ray detection and energy absorption efficiency were calculated. Gd2O2S:Eu showed peak emission in the wavelength range 620-630 nm. The 139.8 mg/cm2 phosphor screen appeared with the maximum light emission efficiency. Due to its reddish emission spectrum, Gd2O2S:Eu showed excellent compatibility with the sensitivity of many currently used photodetectors and could be considered for application in X-ray imaging especially in various digital detectors.	en
heal.publisher	Springer Berlin Heidelberg	el
heal.fullTextAvailability	true
heal.bookName	World Congress on Medical Physics and Biomedical Engineering, September 7 - 12, 2009, Munich, Germany	en