A method to evaluate the performance of x-ray imaging scintillators by means of the brightness-sharpness index (BSI)

dc.contributor.author	Κάβουρας, Διονύσης Α.	el
dc.contributor.author	Κανδαράκης, Ιωάννης Σ.	el
dc.contributor.author	Πρασόπουλος, Παναγιώτης Π.	el
dc.contributor.author	Κανελλόπουλος, Ε.	el
dc.contributor.author	Νομικός, Κωνσταντίνος Δ.	el
dc.date.accessioned	2015-05-04T12:41:11Z
dc.date.issued	2015-05-04
dc.identifier.uri	http://hdl.handle.net/11400/9656
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.ncbi.nlm.nih.gov/pubmed/10080737	en
dc.source	http://acr.sagepub.com/content/40/2/211.long	en
dc.subject	Phosphor
dc.subject	Phosphor screens
dc.subject	Φώσφορος
dc.subject	Εικόνες φωσφόρου
dc.title	A method to evaluate the performance of x-ray imaging scintillators by means of the brightness-sharpness index (BSI)	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	Παναγιωτάκης, Γεώργιος Σ.	el
heal.identifier.secondary	doi: 10.3109/02841859909177741
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	1999
heal.bibliographicCitation	Cavouras, D., Kandarakis, I., Prassopoulos, P., Kanellopoulos, E., Nomicos, C., et al. (March 1999). A method to evaluate the performance of x-ray imaging scintillators by means of the brightness-sharpness index (BSI). Acta Radiologica. 40(2). pp. 211-216. SAGE Publications: 1999.	en
heal.abstract	PURPOSE: To propose an image quality index, the brightness-sharpness index (BSI), for assessing the quality of the image produced by phosphors of medical imaging detectors. MATERIAL AND METHODS: BSI was evaluated by experimental X-ray luminescence and modulation transfer function measurements. BSI was determined for a number of test phosphor screens prepared from Gd2O2S:Tb, La2O2S:Tb, and Y2O2S:Tb phosphor materials. The screens covered a wide range of coating thicknesses from 50 to 150 mg/cm2 and measurements were performed for X-ray tube voltages between 50 and 120 kVp. RESULTS: Gd2O2S:Tb phosphor exhibited higher brightness and sharpness, as compared to the other phosphor materials, for all screens and X-ray tube voltages used. Best Gd2O2S:Tb performance was observed for thin screens and high tube voltages. La2O2S:Tb exhibited higher BSI values than Y2O2S:Tb for medium and high tube voltages. CONCLUSION: Results showed that phosphor materials of high X-ray detection and X-ray-to-light conversion properties exhibit high BSI values indicating that BSI may provide a means of phosphor performance evaluation for imaging applications.	en
heal.publisher	SAGE Publications	en
heal.journalName	Acta Radiologica	en
heal.journalType	peer-reviewed
heal.fullTextAvailability	false