On the response of GdAlO3

dc.contributor.author	Μιχαήλ, Χρήστος Μ.	el
dc.contributor.author	Καλύβας, Νεκτάριος Ι.	el
dc.contributor.author	Βαλαής, Ιωάννης Γ.	el
dc.contributor.author	Δαυίδ, Στράτος Λ.	el
dc.contributor.author	Σεφέρης, Ιωάννης Ε.	el
dc.date.accessioned	2015-05-20T20:06:01Z
dc.date.available	2015-05-20T20:06:01Z
dc.date.issued	2015-05-20
dc.identifier.uri	http://hdl.handle.net/11400/10801
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/S0022231313003797#	el
dc.subject	Inorganic scintillators
dc.subject	Ανόργανοι σπινθηριστές
dc.subject	Radiation detectors
dc.subject	Ανιχνευτές ακτινοβολίας
dc.subject	GdAlO3
dc.subject	Ce
dc.title	On the response of GdAlO3	en
heal.type	journalArticle
heal.secondaryTitle	ce powder scintillators	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://zbw.eu/stw/descriptor/15669-0
heal.classificationURI	N/A-Ιατρική
heal.classificationURI	N/A-Φυσική
heal.keywordURI	http://id.loc.gov/authorities/subjects/sh96012193
heal.contributorName	Τουτουντζής, Ανδριανός Ε.	el
heal.contributorName	Καραμπότσος, Αθανάσιος Χ.	el
heal.contributorName	Λιαπαρίνος, Παναγιώτης Φ.	el
heal.contributorName	Φούντος, Γεώργιος Π.	el
heal.contributorName	Κανδαράκης, Ιωάννης Σ.	el
heal.identifier.secondary	doi:10.1016/j.jlumin.2013.06.041
heal.language	en
heal.access	campus
heal.recordProvider	Τ.Ε.Ι. Αθήνας. Σχολή Τεχνολογικών Εφαρμογών. Τμήμα Μηχανικών Βιοϊατρικής Τεχνολογίας Τ.Ε.	el
heal.publicationDate	2013-12
heal.bibliographicCitation	Michail, c., Kalyvas, N., Valais, I., David, S., Seferis, I., et.al. (2013). On the response of GdAlO3: ce powder scintillators. "Journal of Luminescence", vol. 144, December 2013. pp. 45–52. Available from: http://www.sciencedirect.com/science/article/pii/S0022231313003797. [Accessed 04/07/2013]	en
heal.abstract	The aim of the present study was to investigate the luminescence efficiency (XLE) of gadolinium aluminum perovskite (GdAlO3:Ce) powder scintillator. This powder phosphor, also known as GAP:Ce scintillator, is a non-hygroscopic material, emitting blue light with short decay time. For the purposes of this study, five scintillating screens with coating thicknesses, 14.7, 31.0, 53.7, 67.2 and 121.1 mg/cm2, were prepared in our laboratory from GdAlO3:Ce powder (Phosphor Technology, Ltd) by sedimentation on silica substrates. The light emitted by the phosphors under investigation was evaluated by performing measurements of the absolute luminescence efficiency (AE), X-ray luminescence efficiency and detector quantum gain (DQG) under X-ray exposure conditions with tube voltages ranging from 50 to 140 kV. The quantum detection efficiency (QDE) and energy absorption efficiency (EAE) were also evaluated. The spectral compatibility of GdAlO3:Ce, with various existing optical detectors, was investigated after emission spectra measurements. A theoretical model, describing radiation and light transfer, was used to fit experimental AE data. This has allowed the estimation of optical attenuation coefficients of the scintillator. GdAlO3:Ce exhibited higher QDE and EAE values, compared to aluminium perovskite (YAlO3:Ce) but lower absolute efficiency values. Absolute efficiency was found to increase with increasing X-ray tube voltage, although for values higher than 120 kVp a decrease was observed	en
heal.journalName	Journal of Luminescence	en
heal.journalType	peer-reviewed
heal.fullTextAvailability	true