Luminescence efficiency of Lu2SiO5:Ce (LSO) powder scintillator for x-ray medical radiography applications

dc.contributor.author	Τουτουντζής, Ανδριανός	el
dc.contributor.author	Μιχαήλ, Χρήστος Μ.	el
dc.contributor.author	Δαυίδ, Στράτος	el
dc.contributor.author	Βαλαής, Ιωάννης Γ.	el
dc.contributor.author	Παναγιωτάκης, Γεώργιος Σ.	el
dc.date.accessioned	2015-04-28T19:02:05Z
dc.date.available	2015-04-28T19:02:05Z
dc.date.issued	2015-04-28
dc.identifier.uri	http://hdl.handle.net/11400/9207
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	Σπινθηριστές σκόνης
dc.subject	Απόδοση φωτός εκπομπών
dc.subject	Ακτινογραφία ακτίνων Χ
dc.subject	Powder scintillators
dc.subject	Light emission efficiency
dc.subject	X-ray radiography
dc.title	Luminescence efficiency of Lu2SiO5:Ce (LSO) powder scintillator for x-ray medical radiography applications	en
heal.type	conferenceItem
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	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	Toutountzis, A., David, S., Michail, C., Valais, I., Panagiotakis, G.S. e.t. (2007) Luminescence efficiency of Lu2SiO5:Ce (LSO) powder scintillator for x-ray medical radiography applications. 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 investigate the light emission efficiency of Lu2SiO5:Ce (LSO) powder scintillator under X-ray radiographic imaging conditions. Powder LSO scintillator has never been previously used in X-ray imaging. For the purposes of the present study one scintillating screen with coating thickness of 108.4 mg/cm2 , was prepared by sedimentation of LSO powder. Absolute luminescence efficiency (AE) measurements were performed within the radiographic X-ray tube voltages (40-140 kVp). A theoretical model, describing radiation and light transfer, was employed to fit experimental data and to estimate values of the intrinsic conversion efficiency and the light attenuation coefficients of the scintillating screen. Zero frequency detective quantum efficiency (DQE) was also calculated using the theoretical model. The spectral compatibility of the LSO powder scintillator to various radiographic optical detectors was determined by performing light emission spectrum measurements and by taking into account the spectral sensitivity of the optical sensors used in digital radiography detectors. LSO was found to exhibit higher X-ray energy absorption than currently employed scintillators in the range from 40 to 70 kVp. AE was found to increase with X-ray tube voltage up to 110 kVp. Results showed that the LSO screen may be of interest for use in radiographic applications.	en
heal.fullTextAvailability	true
heal.conferenceName	2nd International conference on experiments/process/system modeling/simulation & optimization	en
heal.conferenceItemType	short paper