Evaluation of the light emission efficiency of LYSO:Ce scintillator under X-ray excitation for possible applications in medical imaging

dc.contributor.author	Βαλαής, Ιωάννης Γ.	el
dc.contributor.author	Κανδαράκης, Ιωάννης Σ.	el
dc.contributor.author	Κωνσταντινίδης, Αναστάσιος Χ.	el
dc.contributor.author	Νικολόπουλος, Δημήτριος Σ.	el
dc.contributor.author	Σιανούδης, Ιωάννης Α.	el
dc.date.accessioned	2015-01-22T09:05:31Z
dc.date.available	2015-01-22T09:05:31Z
dc.date.issued	2015-01-22
dc.identifier.uri	http://hdl.handle.net/11400/4514
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	Inorganic scintillators
dc.subject	Nuclear counters
dc.subject	Ανόργανοι σπινθηριστές
dc.subject	Ανιχνευτές ακτινοβολίας
dc.title	Evaluation of the light emission efficiency of LYSO:Ce scintillator under X-ray excitation for possible applications in medical imaging	en
heal.type	journalArticle
heal.generalDescription	Proceedings of the 3rd International Conference on Imaging Technologies in Biomedical Sciences -Innovation in Nuclear and Radiological Imaging: from Basic Research to Clinical Application	en
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/sh96012193
heal.keywordURI	http://id.loc.gov/authorities/subjects/sh85092953
heal.contributorName	Κάβουρας, Διονύσης 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.nima.2006.08.018
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	Valais, I., Kandarakis, I., Konstantinidis, A., Nikolopoulos, D., Sianoudis, I., et al. (December 2006). Evaluation of the light emission efficiency of LYSO:Ce scintillator under X-ray excitation for possible applications in medical imaging. Nuclear Instruments and Methods in Physics Research A. 569(2). pp. 201–204. Elsevier Science Ltd. Available from: http://www.sciencedirect.com [Accessed 05/09/2006]	en
heal.abstract	Lutetium–yttrium-based scintillators, such as LYSO:Ce, have a high effective atomic number, are non-hygroscopic, fast emitting materials, and promising candidates for use in positron emission imagers. The present study investigates the light emission characteristics of (Lu, Y)2SiO5:Ce (LYSO:Ce) single-crystal scintillator under X-ray imaging conditions. Also, the parameters related to the luminescence emission spectrum and emission efficiency were studied using experimental methods. Various X-ray tube voltages currently employed in X-ray imaging techniques were used. Measurements were performed using an experimental set-up based on a photomultiplier coupled to an integration sphere. In addition, the emission spectrum under UV and X-ray excitation was measured using an optical grating monochromator to determine the spectral compatibility of optical photon detectors incorporated in medical imaging systems. The absolute efficiency of LYSO:Ce was found to increase with increasing X-ray tube voltage (from 2.2 EU at 22 kVp to 22.4 EU at 140 kVp), while its spectrum, peaking at about 430 nm, was found compatible with most optical detectors (photodiodes, photocathodes, charge coupled devices, etc.). The matching factor was estimated to range from 0.76 to 0.92 (for a silicon photodiode and for a GaAsP photocathode, respectively).	en
heal.publisher	Elsevier Science Ltd	en
heal.journalName	Nuclear Instruments and Methods in Physics Research A	en
heal.journalType	peer-reviewed
heal.fullTextAvailability	true