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EnglishA high performance detector head with matrices of silicon photomultipliers (SiPMs) is under development at the University of Pisa. The detector head will be employed in the construction of a high spatial resolution, MR compatible small animal PET scanner. Silicon photomultipliers from FBKirst (Trento, Italy) are being evaluated for this purpose. SiPM elements of 1 mm × 1 mm size and SiPM matrices composed of four (2×2) pixel elements have been tested. An intrinsic timing resolution of 60 ps sigma has been measured. The results with LSO crystals show an energy resolution of 20% FWHM at 511 keV, and a coincidence timing resolution of 600 ps rms. New devices with improved characteristics and active area, as well as SiPM matrices with 16 (4×4) SiPM elements have been produced, and will be evaluated
| Titolo: | Silicon photomultipliers and SiPM matrices as photodetectors in nuclear medicine | |
| Autori interni: | ||
| Anno del prodotto: | 2007 | |
| Abstract: | A high performance detector head with matrices of silicon photomultipliers (SiPMs) is under development at the University of Pisa. The detector head will be employed in the construction of a high spatial resolution, MR compatible small animal PET scanner. Silicon photomultipliers from FBKirst (Trento, Italy) are being evaluated for this purpose. SiPM elements of 1 mm × 1 mm size and SiPM matrices composed of four (2×2) pixel elements have been tested. An intrinsic timing resolution of 60 ps sigma has been measured. The results with LSO crystals show an energy resolution of 20% FWHM at 511 keV, and a coincidence timing resolution of 600 ps rms. New devices with improved characteristics and active area, as well as SiPM matrices with 16 (4×4) SiPM elements have been produced, and will be evaluated | |
| Handle: | http://hdl.handle.net/11568/186841 | |
| Appare nelle tipologie: | 4.1 Contributo in Atti di convegno |
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http://hdl.handle.net/11568/186841
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