A study of X-ray luminescence and spectral compatibility of europium-activated yttrium-vanadate (YVO4:Eu) screens for medical imaging applications

dc.contributor.author	Παναγιωτάκης, Γεώργιος Σ.	el
dc.contributor.author	Κάβουρας, Διονύσης Α.	el
dc.contributor.author	Κανδαράκης, Ιωάννης Σ.	el
dc.contributor.author	Νομικός, Κωνσταντίνος Δ.	el
dc.date.accessioned	2015-05-04T08:58:31Z
dc.date.available	2015-05-04T08:58:31Z
dc.date.issued	2015-05-04
dc.identifier.uri	http://hdl.handle.net/11400/9616
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/article/10.1007%2FBF01567121	en
dc.subject	78.65
dc.subject	42.80
dc.subject	Medical image detectors
dc.subject	Photocathodes
dc.subject	Ανιχνευτές ιατρικής εικόνας
dc.subject	Φωτοκάθοδοι
dc.title	A study of X-ray luminescence and spectral compatibility of europium-activated yttrium-vanadate (YVO4:Eu) screens for medical imaging applications	en
heal.type	journalArticle
heal.classification	Medicine
heal.classification	Biomedical engineering
heal.classification	Ιατρική
heal.classification	Βιοϊατρική τεχνολογία
heal.classificationURI	http://id.loc.gov/authorities/subjects/sh00006614
heal.classificationURI	http://id.loc.gov/authorities/subjects/sh85014237
heal.classificationURI	N/A-Ιατρική
heal.classificationURI	N/A-Βιοϊατρική τεχνολογία
heal.keywordURI	http://id.loc.gov/authorities/subjects/sh85101139
heal.identifier.secondary	DOI 10.1007/BF01567121
heal.language	en
heal.access	campus
heal.recordProvider	Τ.Ε.Ι. Αθήνας. Σχολή Τεχνολογικών Εφαρμογών. Τμήμα Μηχανικών Βιοϊατρικής Τεχνολογίας Τ.Ε.	el
heal.publicationDate	1996
heal.bibliographicCitation	Panayiotakis, G., Cavouras, D., Kandarakis, I. and Nomicos, C. (May 1996). A study of X-ray luminescence and spectral compatibility of europium-activated yttrium-vanadate (YVO4:Eu) screens for medical imaging applications. Applied Physics A. 62(5). pp. 483-486. Springer Verlag: 1996. Available from: http://link.springer.com/article/10.1007%2FBF01567121	en
heal.abstract	The X-ray luminescence efficiency of laboratory-prepared YVO4: Eu screens and their spectral compatibility to common optical detectors were studied under medical fluoroscopy conditions. YVO4: Eu screens were prepared by sedimentation and with different coating thickness. Luminescence efficiency of the YVO4: Eu screens was measured at various X-ray tube voltages (50–250 kVp) and for screens of different coating thicknesses (20–180 mg/cm2). Spectral response was also measured and spectral matching factors between the YVO4: Eu screens and some common optical detectors (photocathodes, photodiodes, photographic emulsion) were calculated. Experimental results on efficiency were fitted by formulas of the theoretical model developed by Hamaker and Ludwig in order to determine phosphor intrinsic X-ray-to-light conversion efficiency and intrinsic optical characteristics, such as coefficients related to light scattering and absorption. Although the luminescence efficiency of YVO4: Eu screens was found to be relatively low (3–11 μM s/mR m2), the matching factor of YVO4 : Eu screens with some red sensitive optical detectors was excellent, of the order of 0.96. High spectral compatibility may indicate that YVO4: Eu scintillators could be used in medical image detectors.	en
heal.publisher	Springer Verlag	en
heal.journalName	Applied Physics A	en
heal.journalType	peer-reviewed
heal.fullTextAvailability	true