Phosphor material evaluation for use in medical imaging radiation detectors by the Noise Equivalent Quanta (NEQ) method.

dc.contributor.author	Κανδαράκης, Ιωάννης Σ.	el
dc.contributor.author	Κάβουρας, Διονύσης Α.	el
dc.contributor.author	Νομικός, Κωνσταντίνος Δ.	el
dc.contributor.author	Παναγιωτάκης, Γεώργιος Σ.	el
dc.date.accessioned	2015-05-05T09:45:04Z
dc.date.available	2015-05-05T09:45:04Z
dc.date.issued	2015-05-05
dc.identifier.uri	http://hdl.handle.net/11400/9726
dc.rights	An error occurred on the license name.	*
dc.rights.uri	An error occurred getting the license - uri.	*
dc.source	http://link.springer.com/article/10.1007/s003400050754#page-1	en
dc.subject	PACS: 07.85
dc.subject	42.30
dc.subject	42.80
dc.subject	Imaging systems in medicine
dc.subject	Optical detectors
dc.subject	Συστήματα απεικόνισης στην ιατρική
dc.subject	Οπτικοί ανιχνευτές
dc.title	Phosphor material evaluation for use in medical imaging radiation detectors by the Noise Equivalent Quanta (NEQ) method.	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.keywordURI	http://id.loc.gov/authorities/subjects/sh85064474
heal.keywordURI	http://id.loc.gov/authorities/subjects/sh85095144
heal.identifier.secondary	DOI 10.1007/s003400050754
heal.language	en
heal.access	campus
heal.recordProvider	Τ.Ε.Ι. Αθήνας. Σχολή Τεχνολογικών Εφαρμογών. Τμήμα Μηχανικών Βιοϊατρικής Τεχνολογίας Τ.Ε.	el
heal.publicationDate	1999
heal.bibliographicCitation	Kandarakis, I., Cavouras, D., Nomicos, C. and Panayiotakis, G. (June 1999). Phosphor material evaluation for use in medical imaging radiation detectors by the Noise Equivalent Quanta (NEQ) method. Applied Physics B Lasers and Optics. 68(6). pp. 1121-1124. Springer-Verlag: 1999. Available from: http://link.springer.com/article/10.1007/s003400050754#page-1	en
heal.abstract	This study presents a method to evaluate the imaging performance of phosphor materials used in medical imaging systems. The advantage of the method is that phosphor evaluation is performed independently of the optical detectors (films, photocathodes, photodiodes) used in radiation detectors to capture phosphor light. The method is based on the noise-equivalent-quanta (NEQ) concept, which provides an index of the signal-to-noise ratio (SNR) associated with the diagnostic value of a medical image. NEQ was expressed as a function of the phosphor’s emitted light wavelength, light energy flux, and modulation transfer function (MTF). All these parameters are related to intrinsic phosphor properties such as effective atomic number, density, activator ion. The method was tested on three yttrium-based phosphors, two of them activated with europium (Eu3+) and one with terbium (Tb3+). Results showed that europium-activated phosphors (Y2O2S:Eu, Y2O3:Eu) exhibited improved SNR, whereas the terbium phosphor (Y2O2S:Tb) had better MTF.	en
heal.publisher	Springer Verlag	en
heal.journalName	Applied Physics B Lasers and Optics	en
heal.journalType	peer-reviewed
heal.fullTextAvailability	true