An experimental method to determine the effective luminescence efficiency of scintillator-photodetector combinations used in X-ray medical imaging systems

dc.contributor.author	Κάβουρας, Διονύσης Α.	el
dc.contributor.author	Κανδαράκης, Ιωάννης Σ.	el
dc.contributor.author	Μπάκας, Αθανάσιος	el
dc.contributor.author	Τριάντης, Δήμος Α.	el
dc.contributor.author	Νομικός, Κωνσταντίνος Δ.	el
dc.date.accessioned	2015-04-19T08:42:00Z
dc.date.issued	2015-04-19
dc.identifier.uri	http://hdl.handle.net/11400/8535
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.bir.org.uk/	en
dc.subject	Geometrical configuration
dc.subject	Test screens
dc.subject	Image brightness level
dc.subject	Orthochromatic radiographic films
dc.subject	Fluoroscopy
dc.subject	Γεωμετρική διαμόρφωση
dc.subject	Δοκιμή οθονών
dc.subject	Επίπεδο φωτεινότητας της εικόνας
dc.subject	Ορθοχρωματικό ακτινογραφικό φιλμ
dc.subject	Ακτινοσκόπηση
dc.title	An experimental method to determine the effective luminescence efficiency of scintillator-photodetector combinations used in X-ray medical imaging systems	en
heal.type	journalArticle
heal.classification	Medicine
heal.classification	Medical physics
heal.classification	Ιατρική
heal.classification	Ιατρική φυσική
heal.classificationURI	http://id.loc.gov/authorities/subjects/sh00006614
heal.classificationURI	http://id.loc.gov/authorities/subjects/sh85083001
heal.classificationURI	N/A-Ιατρική
heal.classificationURI	N/A-Ιατρική φυσική
heal.keywordURI	http://id.loc.gov/authorities/subjects/sh85049441
heal.contributorName	Παναγιωτάκης, Γεώργιος Σ.	el
heal.identifier.secondary	http://dx.doi.org/10.1259/bjr.71.847.9771388
heal.dateAvailable	10000-01-01
heal.language	en
heal.access	forever
heal.publicationDate	1998
heal.bibliographicCitation	CAVOURAS, D.A., KANDARAKIS, I.S., BAKAS, A., TRIANTIS, D.A., NOMICOS, C.D., ET AL. (1998). An experimental method to determine the effective luminescence efficiency of scintillator-photodetector combinations used in X-ray medical imaging systems. British Journal of Radiology. [Online] 71 (847). p.766-772. Available from: http://www.birpublications.org/[Accessed 28/01/2014]	en
heal.abstract	The scintillator effective luminescence efficiency, which may be defined in terms of the scintillator's X-ray luminescence efficiency and the scintillator-photodetector spectral matching and geometrical configuration, was studied for various X-ray imaging applications. Four scintillator materials Gd2O2S:Tb, Y2O2S:Tb, ZnSCdS:Ag and CsI:Na were used to prepare test screens. They were evaluated in relation to various photodetectors used in X-ray imaging, such as radiographic films, photocathodes, and photodiodes. Effective luminescence efficiency was determined for a range of X-ray tube voltages (50-140 kVp) by measuring the light flux emitted per unit of incident exposure rate and the spectra of the light emitted by the four scintillators. Scintillator-photodetector combinations resulting in higher image brightness level were determined for different X-ray imaging systems. Findings indicate that CsI:Na is very efficient with orthochromatic radiographic films, Gd2O2S:Tb could be useful in conventional or digital fluoroscopy and in CT and ZnSCdS:Ag could be employed in some medium to low voltage digital radiography applications.	en
heal.publisher	British Institute of Radiology	en
heal.journalName	British Journal of Radiology	en
heal.journalType	peer-reviewed
heal.fullTextAvailability	false