Imaging performance of silicon photomultipliers coupled to BGO and CsI

dc.contributor.author	Δαυίδ, Στράτος	el
dc.contributor.author	Γεωργίου, Μαρία	el
dc.contributor.author	Φυσικόπουλος, Ελευθέριος	el
dc.contributor.author	Λούντος, Γεώργιος	el
dc.contributor.author	Belcari, N.	en
dc.date.accessioned	2015-06-05T16:12:55Z
dc.date.available	2015-06-05T16:12:55Z
dc.date.issued	2015-06-05
dc.identifier.uri	http://hdl.handle.net/11400/15148
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://iopscience.iop.org/	en
dc.subject	Αξονική τομογραφία
dc.subject	Silicon photomultipliers
dc.subject	Ανιχνευτές σπινθηρισμών
dc.subject	Φωτοπολλαπλασιαστές πυριτίου
dc.title	Imaging performance of silicon photomultipliers coupled to BGO and CsI	en
heal.type	journalArticle
heal.secondaryTitle	na arrays	en
heal.classification	Medicine
heal.classification	Medical physics
heal.classification	Ιατρική
heal.classification	Ιατρική φυσική
heal.classificationURI	http://id.loc.gov/authorities/subjects/sh00006614
heal.classificationURI	http://id.loc.gov/authorities/subjects/sh85083001
heal.classificationURI	N/A-Ιατρική
heal.classificationURI	N/A-Ιατρική φυσική
heal.identifier.secondary	DOI: 10.1088/1748-0221/8/12/P12008
heal.language	en
heal.access	campus
heal.publicationDate	2013
heal.bibliographicCitation	David, S., Georgiou, M., Fysikopoulos, E., Belcari, N. and Loudos, G. (2013) Imaging performance of silicon photomultipliers coupled to BGO and CsI:Na arrays. "Journal of Instrumentation", 8 (12)	en
heal.abstract	The aim of this study is to investigate the imaging performance of a silicon photomultiplier array (ArraySL-4) photodetector for possible PET and potentially SPECT applications using BGO and CsI(Na) pixellated scintillators. Our main objectives are: i) the comparison of the ArraySL-4 to the older version SensL’s SPMArray4 photo detector in terms of energy resolution and peak to valley ratio of a row profile in the flood image and ii) the study of the effect of different coupling schemes using ultra transmitting glass windows of various thicknesses. We acquired raw images from two pixellated scintillators (BGO with 2 2 5mm3 and CsI:Na with 1 1 5mm3 pixel sizes) irradiated with 511 keV and 1274.5 keV g-rays from a 22Na source. The SiPM array detector allowed the clear visualization of the discrete 2 2mm2 pixellated BGO and 1 1mm2 CsI:Na scintillator elements at room temperature (no cooling). The energy resolution of the new SensL ArraySL-4 detector for the 2 2 5mm3 BGO pixellated scintillator array is improved for rather 6 percentage points (energy resolution improvement equal to 22%) and the peak to valley ratio is measured higher for both scintillator arrays (for BGO 68% (1:7 ) and for CsI:Na 154% (2:5 )) compared with SPMArray4. The clear identification of the 1 1mm2 CsI:Na scintillator elements provides evidence that the combination of those SiPMs with even smaller arrays can be used as an efficient imaging detector module. Optical coupling significantly improves image uniformity, while the use of BK7 ultra transmitting glass window with 1.35mm thickness provided the best measure energy resolution equal to 21.5%.	en
heal.journalName	Journal of Instrumentation	en
heal.journalType	peer-reviewed
heal.fullTextAvailability	true