Title :
SiPM-based PET module with depth of interaction
Author :
Pennazio, F. ; Ambrosi, G. ; Bisogni, Maria G. ; Cerello, P. ; Corsi, F. ; Del Guerra, Alberto ; Ionica, Mircea Horea ; Marino, Nahema ; Marzocca, Cristoforo ; Morrocchi, Matteo ; Peroni, C. ; Pirrone, G. ; Santoni, C. ; Wheadon, Richard
Author_Institution :
Dept. of Phys., Univ. of Torino, Turin, Italy
fDate :
Oct. 27 2012-Nov. 3 2012
Abstract :
Silicon Photomultipliers are used in many new generation PET block detectors. High granularity pixel SiPMs allow a high precision measurement of the photon interaction coordinates along the crystal surface. In order to further improve the resolution it is necessary to measure the photon Depth of Interaction (DOl), so as to reduce the parallax error in the Line of Response reconstruction. An innovative technique for DOl determination is proposed and tested. Measurements are made with a 2 cm × 2 cm × 1 cm LYSO slab with readout on the front and back large sides by means of two 4 × 4 square SiPM pixel matrices of 5 mm pitch. The data acquisition is based on the new BASIC32 chip read out with an FPGA-based system.
Keywords :
data acquisition; elemental semiconductors; modules; photomultipliers; positron emission tomography; silicon; silicon radiation detectors; BASIC32 chip read out; DOl; FPGA-based system; LYSO slab; PET block detectors; PET module; Si; SiPM; data acquisition; depth-of-interaction; line-of-response reconstruction; silicon photomultipliers; size 1 cm; size 2 cm;
Conference_Titel :
Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC), 2012 IEEE
Conference_Location :
Anaheim, CA
Print_ISBN :
978-1-4673-2028-3
DOI :
10.1109/NSSMIC.2012.6551869
