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Development of a SIPM based gamma-ray imager using a Gd3Al 2Ga3O12:Ce (GAGG:Ce) scintillator array
dc.creator | Georgiou, M. | en |
dc.creator | David, S. | en |
dc.creator | Fysikopoulos, E. | en |
dc.creator | Loudos, G. | en |
dc.date.accessioned | 2015-11-23T10:27:42Z | |
dc.date.available | 2015-11-23T10:27:42Z | |
dc.date.issued | 2013 | |
dc.identifier | 10.1109/NSSMIC.2013.6829327 | |
dc.identifier.isbn | 9781479905348 | |
dc.identifier.issn | 10957863 | |
dc.identifier.uri | http://hdl.handle.net/11615/27772 | |
dc.description.abstract | In this study we present the performance evaluation of a 6×6 Gd3Al2Ga3O12:Ce (GAGG:Ce) pixellated scintillator with 2×2×5mm 3 crystal size elements, coupled to a silicon photomultiplier array (ArraySL-4). Evaluation was carried out with low energy isotopes i.e. 57Co and 99mTc. A symmetric resistive charge division matrix was used reducing array's 16 outputs to 4 position signals. A Field Programmable Gate Array (FPGA) Spartan 6 LX16 was used for triggering and signal processing of the signal pulses acquired using a free running sampling technique. Raw images of the crystals maps were acquired. The mean energy resolution at 140keV and 122.1 keV was 16.1±0.52% and 18.1±0.64% respectively, and the peak to valley ratio was found equal to 17.7±2.7. Comparative measurements of two 3×3×5mm3 CsI:Tl and GAGG:Ce scintillators of same thickness are also presented. All measurements were performed at room temperature ∼25°C, without additional cooling. According to our knowledge this is the first time that the new developed GAGG:Ce scintillator array has been evaluated at low energies. © 2013 IEEE. | en |
dc.source.uri | http://www.scopus.com/inward/record.url?eid=2-s2.0-84904191995&partnerID=40&md5=f74de238c3977df8d2803bbfb231babb | |
dc.subject | Field programmable gate arrays (FPGA) | en |
dc.subject | Gamma rays | en |
dc.subject | Isotopes | en |
dc.subject | Medical imaging | en |
dc.subject | Nuclear physics | en |
dc.subject | Scintillation counters | en |
dc.subject | Signal processing | en |
dc.subject | Comparative measurements | en |
dc.subject | Gamma-ray imager | en |
dc.subject | Peak-to-valley ratios | en |
dc.subject | Position signals | en |
dc.subject | Room temperature | en |
dc.subject | Sampling technique | en |
dc.subject | Scintillator arrays | en |
dc.subject | Silicon photomultiplier | en |
dc.subject | X ray cameras | en |
dc.title | Development of a SIPM based gamma-ray imager using a Gd3Al 2Ga3O12:Ce (GAGG:Ce) scintillator array | en |
dc.type | conferenceItem | en |
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