A theoretical model evaluating the angular distribution of luminescence emission in X-ray scintillating screens

dc.contributor.author	Κανδαράκης, Ιωάννης Σ.	el
dc.contributor.author	Κάβουρας, Διονύσης Α.	el
dc.contributor.author	Νικολόπουλος, Δημήτριος Σ.	el
dc.contributor.author	Επισκοπάκης, Α.	el
dc.contributor.author	Καλύβας, Νεκτάριος Ι.	el
dc.date.accessioned	2015-01-16T11:24:43Z
dc.date.available	2015-01-16T11:24:43Z
dc.date.issued	2015-01-16
dc.identifier.uri	http://hdl.handle.net/11400/4124
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.elsevier.com	en
dc.subject	X-ray imaging
dc.subject	Angular distribution (Nuclear physics)
dc.subject	Απεικόνιση με ακτίνες Χ
dc.subject	Γωνιακή κατανομή
dc.title	A theoretical model evaluating the angular distribution of luminescence emission in X-ray scintillating screens	en
heal.type	journalArticle
heal.classification	Medicine
heal.classification	Medicine, Physical
heal.classification	Ιατρική
heal.classification	Ιατρική φυσική
heal.classificationURI	http://id.loc.gov/authorities/subjects/sh00006614
heal.classificationURI	http://id.loc.gov/authorities/subjects/sh85083159
heal.classificationURI	N/A-Ιατρική
heal.classificationURI	N/A-Ιατρική φυσική
heal.keywordURI	http://id.loc.gov/authorities/subjects/sh85005143
heal.contributorName	Λαπαρίνος, Παναγιώτης	el
heal.contributorName	Βαλαής, Ιωάννης Γ.	el
heal.contributorName	Καγκάδης, Γεώργιος Χ.	el
heal.contributorName	Κουρκουτάς, Κωνσταντίνος Δ.	el
heal.contributorName	Σιανούδης, Ιωάννης Α.	el
heal.contributorName	Δημητρόπουλος, Νικόλαος	el
heal.contributorName	Νομικός, Κωνσταντίνος Δ.	el
heal.contributorName	Παναγιωτάκης, Γεώργιος Σ.	el
heal.identifier.secondary	doi:10.1016/j.apradiso.2005.11.016
heal.language	en
heal.access	free
heal.recordProvider	Τ.Ε.Ι. Αθήνας. Σχολή Τεχνολογικών Εφαρμογών. Τμήμα Μηχανικών Βιοϊατρικής Τεχνολογίας Τ.Ε.	el
heal.publicationDate	2006
heal.bibliographicCitation	Kandarakis, A., Cavouras, D., Nikolopoulos, D., Episkopakis, A., Kalivas, N., et al. (April 2006). A theoretical model evaluating the angular distribution of luminescence emission in X-ray scintillating screens. Applied Radiation and Isotopes. 64(4). pp. 508–519. Elsevier Ltd. Available from: http://www.sciencedirect.com [Accessed 04/01/2006]	en
heal.abstract	The aim of this study was to examine the angular distribution of the light emitted from radiation-excited scintillators in medical imaging detectors. This distribution diverges from Lambert's cosine law and affects the light emission efficiency of scintillators, hence it also affects the dose burden to the patient. In the present study, the angular distribution was theoretically modeled and was used to fit experimental data on various scintillator materials. Results of calculations revealed that the angular distribution is more directional than that predicted by Lambert's law. Divergence from this law is more pronounced for high values of light attenuation coefficient and thick scintillator layers (screens). This type of divergence reduces light emission efficiency and hence it increases the incident X-ray flux required for a given level of image brightness.	en
heal.publisher	Elsevier Ltd	en
heal.journalName	Applied Radiation and Isotopes	en
heal.journalType	peer-reviewed
heal.fullTextAvailability	true