Evaluation of a SiPM array coupled to a Gd3Al2Ga3O12: Ce (GAGG: Ce) discrete scintillator

dc.contributor.author	Γεωργίου, Μαρία	el
dc.contributor.author	Φυσικόπουλος, Ελευθέριος	el
dc.contributor.author	Λούντος, Γεώργιος	el
dc.contributor.author	Δαυίδ, Στράτος Λ.	el
dc.date.accessioned	2015-06-06T13:01:58Z
dc.date.available	2015-06-06T13:01:58Z
dc.date.issued	2015-06-06
dc.identifier.uri	http://hdl.handle.net/11400/15308
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.sciencedirect.com/science/article/pii/S1120179715000708	en
dc.subject	Φωτοπολλαπλασιαστές πυριτίου
dc.subject	φωτο-ανιχνευτής
dc.subject	ανιχνευτές ιατρικής απεικόνισης
dc.subject	Silicon photomultipliers
dc.subject	photo-detector
dc.subject	medical imaging detectors
dc.title	Evaluation of a SiPM array coupled to a Gd3Al2Ga3O12: Ce (GAGG: Ce) discrete scintillator	en
heal.type	journalArticle
heal.classification	Τεχνολογία
heal.classification	Ιατρική
heal.classification	Technology
heal.classification	Medicine
heal.classificationURI	N/A-Τεχνολογία
heal.classificationURI	N/A-Ιατρική
heal.classificationURI	http://id.loc.gov/authorities/subjects/sh85133147
heal.classificationURI	http://id.loc.gov/authorities/subjects/sh00006614
heal.identifier.secondary	DOI: 10.1016/j.ejmp.2015.03.008
heal.language	en
heal.access	campus
heal.recordProvider	Τεχνολογικό Εκπαιδευτικό Ίδρυμα Αθήνας. Σχολή Τεχνολογικών Εφαρμογών. Τμήμα Μηχανικών Βιοϊατρικής Τεχνολογίας Τ.Ε.	el
heal.publicationDate	2014-12-29
heal.bibliographicCitation	David, S., Georgiou, M., Fysikopoulos, E. and Loudos, G. (2014) Evaluation of a SiPM array coupled to a Gd3Al2Ga3O12: Ce (GAGG: Ce) discrete scintillator. Physica Medica. Available from: http://www.sciencedirect.com [Accessed 06/06/2015]	en
heal.abstract	Purpose: In this study, we present the results of the evaluation of the SensL ArraySL-4 photo-detector, coupled to a 6×6 GAGG:Ce scintillator array, with 2×2×5mm3 crystal size elements for possible applications in medical imaging detectors with focus in PET applications. Experimental evaluation was carried out with 22Na and 137Cs radioactive sources and the parameters studied were energy resolution and peak to valley ratio. Methods: ArraySL-4 is a commercially available, 4×4 array detector covering an active area of 13.4mm2. The GAGG:Ce scintillator array used in this study has 0.1mm thickness BaSO4 reflector material between the crystal elements. A symmetric resistive voltage division matrix was applied, which reduces the 16 outputs of the array to 4 position signals. A Field Programmable Gate Array was used for triggering and digital processing of the signal pulses acquired using free running Analog to Digital Converters. Results: Raw images and horizontal profiles of the 6×6 GAGG:Ce scintillator array produced under 511keV and 662keV excitation are illustrated. Moreover, the energy spectra obtained with 22Na and 137Cs radioactive sources from a single 2×2×5mm3 GAGG:Ce scintillator are shown. The peak to valley ratio and the mean energy resolution values are reported. Conclusions: The acquired raw image of the GAGG:Ce crystal array under 511keV excitation shows a clear visualization of all discrete scintillator elements with a mean peak to valley ratio equal to 40. The mean energy resolution was measured equal to 10.5% and 9% respectively under 511keV and 662keV irradiation.	en
heal.publisher	Elsevier	en
heal.journalName	Physica Medica	en
heal.journalType	peer-reviewed
heal.fullTextAvailability	true