Light emission efficiency and imaging properties
of YAP:Ce granular phosphor screens

dc.contributor.author	Καλύβας, Νεκτάριος Ι.	el
dc.contributor.author	Βαλαής, Ιωάννης Γ.	el
dc.contributor.author	Νικολόπουλος, Δημήτριος Σ.	el
dc.contributor.author	Κωνσταντινίδης, Αναστάσιος Χ.	el
dc.contributor.author	Γαϊτάνης, Αναστάσιος	el
dc.date.accessioned	2015-01-20T14:29:12Z
dc.date.available	2015-01-20T14:29:12Z
dc.date.issued	2015-01-20
dc.identifier.uri	http://hdl.handle.net/11400/4328
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	Pharmaceutical biotechnology industry
dc.subject	Chemical Manufacturing
dc.subject	Βιοτεχνολογία
dc.subject	Χημική βιομηχανία
dc.title	Light emission efficiency and imaging properties of YAP:Ce granular phosphor screens	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.keywordURI	http://id.loc.gov/authorities/subjects/sh00005579
heal.contributorName	Κάβουρας, Διονύσης Α.	el
heal.contributorName	Νομικός, Κωνσταντίνος Δ.	el
heal.contributorName	Παναγιωτάκης, Γεώργιος Σ.	el
heal.contributorName	Κανδαράκης, Ιωάννης Σ.	el
heal.identifier.secondary	DOI 10.1007/s00339-007-4173-8
heal.language	en
heal.access	free
heal.recordProvider	Τ.Ε.Ι. Αθήνας. Σχολή Τεχνολογικών Εφαρμογών. Τμήμα Μηχανικών Βιοϊατρικής Τεχνολογίας Τ.Ε.	el
heal.publicationDate	2007
heal.bibliographicCitation	Kalivas, N., Valais, I., Nikolopoulos, D., Konstantinidis, A., Gaitanis, A., et al. (November 2007). Light emission efficiency and imaging properties of YAP:Ce granular phosphor screens. Applied Physics A. 89(2). pp. 443-449. Springer-Verlag. Available from: http://link.springer.com [Accessed 14/07/2007]	en
heal.abstract	Phosphor materials are used in medical imaging combined with radiographic film or other photodetectors. Cerium (Ce3+) -doped scintillators are of particular interest for medical imaging, because of their very fast response. YAP:Ce scintillator-based image detectors have already been evaluated in single-crystal form and under conditions of positron emission tomography and synchrotron or γ-ray irradiation. Furthermore, YAP:Ce phosphor has been evaluated in conjunction with radiographic films. The present work reports experimental and theoretical data concerning the light output absolute luminescence efficiency (AE) of the YAP:Ce screens under irradiation conditions employed in medical X-ray projection imaging (i.e., in diagnostic radiology). projection imaging (i.e., in diagnostic radiology). YAP:Ce phosphor screens with surface densities ranging between 53 and 110 mg/cm2 were prepared by sedimentation on fused silica substates in our laboratory. The resulted surface density of the screens was determined by dividing the phosphor mass deposited on the screen surface with the area of the surface. Additionally this work addresses the imaging performance of YAP:Ce by estimation of the detective quantum efficiency (DQE), i.e., the square of the signal to noise ratio transfer. Absolute efficiency was found to decrease with X-ray tube voltage for for YAP:Ce phosphor. The highest experimental efficiency was obtained for the 53.7 mg/cm2 and 88.0 mg/cm2 YAP:Ce screens. The highest DQE value was found for the 88.0 mg/cm2 screen irradiated at 60 kVp.	en
heal.publisher	Springer-Verlag	en
heal.journalName	Applied Physics A	en
heal.journalType	peer-reviewed
heal.fullTextAvailability	true