An experimental method to determine the effective 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	Παναγιωτάκης, Γεώργιος Σ.	el
dc.contributor.author	Μπάκας, Αθανάσιος	el
dc.contributor.author	Τριάντης, Δήμος Α.	el
dc.date.accessioned	2015-05-04T10:32:37Z
dc.date.issued	2015-05-04
dc.identifier.uri	http://hdl.handle.net/11400/9637
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.birpublications.org/doi/abs/10.1259/bjr.71.847.9771388	en
dc.subject	X-ray imaging applications
dc.subject	Photodetectors
dc.subject	Εφαρμογές απεικόνισης ακτίνων Χ
dc.subject	Φωτοανιχνευτές
dc.title	An experimental method to determine the effective efficiency of scintillator-photodetector combinations used in x-ray medical imaging systems	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.contributorName	Νομικός, Κωνσταντίνος Δ.	el
heal.identifier.secondary	DOI: http://dx.doi.org/10.1259/bjr.71.847.9771388
heal.dateAvailable	10000-01-01
heal.language	en
heal.access	forever
heal.recordProvider	Τ.Ε.Ι. Αθήνας. Σχολή Τεχνολογικών Εφαρμογών. Τμήμα Μηχανικών Βιοϊατρικής Τεχνολογίας Τ.Ε.	el
heal.publicationDate	1998
heal.bibliographicCitation	Cavouras, D., Kandarakis, I., Panayiotakis, G., Bakas, A., Triantis, D., et al. (1998). An experimental method to determine the effective efficiency of scintillator-photodetector combinations used in x-ray medical imaging systems. British Journal of Radiology. 71(847). pp. 766-772. British Institute of Radiology: 1998.	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