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

dc.contributor.author	Ντάβιντ, Στράτος Λ.	el
dc.contributor.author	Μιχαήλ, Χρήστος Μ.	el
dc.contributor.author	Βαλαής, Ιωάννης Γ.	el
dc.contributor.author	Νικολόπουλος, Δημήτριος Σ.	el
dc.contributor.author	Καλύβας, Νεκτάριος Ι.	el
dc.date.accessioned	2015-01-21T12:17:58Z
dc.date.issued	2015-01-21
dc.identifier.uri	http://hdl.handle.net/11400/4436
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	X-ray imaging
dc.subject	Biomedical materials--Imaging compatibility
dc.subject	Απεικόνιση με ακτίνες Χ
dc.subject	Βιοϊατρική απεικόνιση
dc.title	Luminescence efficiency of Lu2SiO5:Ce (LSO) powder scintillator for X-ray medical radiography applications	en
heal.type	conferenceItem
heal.generalDescription	2006 IEEE Nuclear Science Symposium Conference Record (volume 2)	en
heal.classification	Medicine
heal.classification	Medical technology
heal.classification	Ιατρική
heal.classification	Ιατρική τεχνολογία
heal.classificationURI	http://id.loc.gov/authorities/subjects/sh00006614
heal.classificationURI	http://skos.um.es/unescothes/C02465
heal.classificationURI	N/A-Ιατρική
heal.classificationURI	N/A-Ιατρική τεχνολογία
heal.keywordURI	http://id.loc.gov/authorities/subjects/sh2002010215
heal.contributorName	Καλατζής, Ιωάννης	el
heal.contributorName	Καρατόπης, Αναστάσιος	el
heal.contributorName	Κάβουρας, Διονύσης Α.	el
heal.contributorName	Λουντός, Γεώργιος	el
heal.contributorName	Παναγιωτάκης, Γεώργιος Σ.	el
heal.contributorName	Κανδαράκης, Ιωάννης Σ.	el
heal.identifier.secondary	DOI: 10.1109/NSSMIC.2006.356054
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	2006
heal.bibliographicCitation	David, S., Michail, C., Valais, I., Nikolopoulos, D., Kalivas, N., et al. (2006). Luminescence efficiency of Lu2SiO5:Ce (LSO) powder scintillator for X-ray medical radiography applications. In the Nuclear Science Symposium Conference Record. San Diego, 29th October-1st November 2006. pp. 1178 - 1182. IEEE.	en
heal.abstract	This work investigates 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 three scintillating screens with coating thickness of 63.4, 108.4 and 172.5 mg/cm2, were prepared by sedimentation of LSO powder. Absolute luminescence efficiency (AE) measurements were performed in the radiographic X-ray tube voltages (40-140 kVp) range. Parameters related to X-ray detection, i.e. energy absorption efficiency and quantum detection efficiency were calculated. 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 screens. 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 (CsI:Tl and Gd2O2S:Tb) in the range from 40 to 70 kVp. AE was found to increase with X-ray tube voltage up to 110 kVp. Maximum AE (8.2 times 10-6 W middot s/mR middot m2) was observed for the screen of 172.5 mg/cm2.	en
heal.publisher	IEEE	en
heal.fullTextAvailability	true
heal.conferenceName	Nuclear Science Symposium Conference Record	en
heal.conferenceItemType	full paper