Modeling the imaging trandfer characteristics of LSO powder scintillator for use in x-ray mammography

dc.contributor.author	Μιχαήλ, Χρήστος Μ.	el
dc.contributor.author	Δαυίδ, Στράτος	el
dc.contributor.author	Βαλαής, Ιωάννης Γ.	el
dc.contributor.author	Τουτουντζής, Ανδριανός	el
dc.contributor.author	Καλύβας, Νεκτάριος Ι.	el
dc.date.accessioned	2015-04-28T17:32:57Z
dc.date.available	2015-04-28T17:32:57Z
dc.date.issued	2015-04-28
dc.identifier.uri	http://hdl.handle.net/11400/9201
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.subject	Inorganic scintillators
dc.subject	Ανόργανοι σπινθηριστές
dc.subject	Ανιχνευτές ακτινοβολίας
dc.subject	Χαρακτηριστικά απεικόνισης μεταφοράς
dc.subject	Radiation detectors
dc.subject	Imaging transfer characteristics
dc.title	Modeling the imaging trandfer characteristics of LSO powder scintillator for use in x-ray mammography	en
heal.type	conferenceItem
heal.classification	Medicine
heal.classification	Ιατρική
heal.classification	Φυσική
heal.classification	Physics
heal.classificationURI	http://id.loc.gov/authorities/subjects/sh00006614
heal.classificationURI	N/A-Ιατρική
heal.classificationURI	N/A-Φυσική
heal.classificationURI	http://skos.um.es/unescothes/C02994
heal.keywordURI	http://id.loc.gov/authorities/subjects/sh96012193
heal.contributorName	Παναγιωτάκης, Γιώργος Σ.	el
heal.contributorName	Κανδαράκης, Ιωάννης	el
heal.language	en
heal.access	free
heal.recordProvider	Τεχνολογικό Εκπαιδευτικό Ίδρυμα Αθήνας. Σχολή Τεχνολογικών Εφαρμογών. Tμήμα Μηχανικών Βιοϊατρικής Τεχνολογίας T.E.	el
heal.publicationDate	2007-07
heal.bibliographicCitation	Michail, C., David, S., Toutountzis, A., Kalivas, N., Kandarakis, I. e.t. (2007) Modeling the imaging trandfer characteristics of LSO powder scintillator for use in x-ray mammography. In 2nd International conference on experiments/process/system modeling/simulation & optimization. Athens, Greece, 4-7 July 2007. pp.1-2.	en
heal.abstract	The aim of the present study was to model the imaging transfer characteristics of Lu2SiO5:Ce (LSO:Ce) powder scintillator for use in X-ray mammography detectors. LSO:Ce scintillator is a high efficiency and fast emitting material. An LSO:Ce powder scintillating screen, with a coating thickness of 25 mg / cm2 , was prepared in our laboratory. The imaging performance of the screen was assessed by experimental determination of the modulation transfer function (MTF) and the detective quantum efficiency (DQE). An MTF mathematical relation derived by the theoretical model was fitted to experimental MTF values in order to estimate the light attenuation properties of the scintillator. Screen irradiation was performed under exposure conditions employed in mammographic applications (27 kVp, 63 mAs). MTF was determined by the square wave response function (SWRF) method whereas DQE was estimated by using: (a) the MTF curve, (b) the noise transfer function (NTF) and (c) K.E.R.M.A. measurements, according to IEC standard 62220-1. Results showed that LSO:Ce exhibits high MTF, which is comparable to that of the commercially used Gd2O2S: Tb powder scintillator. Considering our MTF results and the fast response of LSO:Ce scintillator screen (40 ns), this material can be considered for use in X-ray mammographic detectors.	en
heal.fullTextAvailability	true
heal.conferenceName	2nd International conference on experiments/process/system modeling/simulation & optimization	en
heal.conferenceItemType	short paper