TY - GEN
T1 - Monolithic 64-channel SiPM matrices for small animal PET
AU - Llosá, Gabriela
AU - Lacasta, Carlos
AU - Belcari, Nicola
AU - Bisogni, Maria Giuseppina
AU - Collazuol, Gianmaria
AU - Marcatili, Sara
AU - Barrillon, Pierre
AU - Bondil-Blin, Sylvie
AU - De La Taille, Christophe
AU - Piemonte, Claudio
AU - Del Guerra, Alberto
PY - 2009/1/1
Y1 - 2009/1/1
N2 - The University of Pisa and INFN Pisa are developing a small animal PET prototype scanner employing continuous LYSO crystals and the silicon photomultiplier (SiPM) matrices fabricated at FBK-irst. The SiPM matrices have 64 SiPM pixel elements in a common substrate. The SiPM elements are 1.4 mmx1.5 mm size, in a 1.5 mmx1.5 mm pitch. The test of the first detector heads is taking place in collaboration with IFIC, Valencia. The detectors consist of a LYSO crystal of 12 mmx12 mm coupled to a SiPM matrix. Characterization and position determination tests have been carried out. The energy resolution obtained is 14.5% FWHM at 511 keV. The spatial resolution with center-of-gravity algorithms is 0.9 mm FWHM. A Maximum likelihood method is also being tested. This method allows to separate points at 1 mm distance, and to reconstruct correctly the interaction position also at the edges of the detector.
AB - The University of Pisa and INFN Pisa are developing a small animal PET prototype scanner employing continuous LYSO crystals and the silicon photomultiplier (SiPM) matrices fabricated at FBK-irst. The SiPM matrices have 64 SiPM pixel elements in a common substrate. The SiPM elements are 1.4 mmx1.5 mm size, in a 1.5 mmx1.5 mm pitch. The test of the first detector heads is taking place in collaboration with IFIC, Valencia. The detectors consist of a LYSO crystal of 12 mmx12 mm coupled to a SiPM matrix. Characterization and position determination tests have been carried out. The energy resolution obtained is 14.5% FWHM at 511 keV. The spatial resolution with center-of-gravity algorithms is 0.9 mm FWHM. A Maximum likelihood method is also being tested. This method allows to separate points at 1 mm distance, and to reconstruct correctly the interaction position also at the edges of the detector.
KW - G-APD
KW - Position determination
KW - Silicon photomultiplier matrices
UR - https://www.scopus.com/pages/publications/77951164419
U2 - 10.1109/NSSMIC.2009.5401994
DO - 10.1109/NSSMIC.2009.5401994
M3 - Conference contribution
AN - SCOPUS:77951164419
SN - 9781424439621
T3 - IEEE Nuclear Science Symposium Conference Record
SP - 2658
EP - 2661
BT - 2009 IEEE Nuclear Science Symposium Conference Record, NSS/MIC 2009
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2009 IEEE Nuclear Science Symposium Conference Record, NSS/MIC 2009
Y2 - 25 October 2009 through 31 October 2009
ER -