Cita:
2008 IEEE Nuclear Science Symposium Conference Record, October 2008, p. 3591-3595
ISBN:
978-1-4244-2714-7
ISSN:
1082-3654
DOI:
10.1109/NSSMIC.2008.4774097
Patrocinador:
This work was supported in part by the MEC (FPA2007-07393), CDTEAM (CENIT-Ingenio 2010) Ministerio de Industria, Spain, UCM (Grupos UCM: 910059), CPAN (ConsoliderIngenio 2010) CSPD-2007-00042 projects, and the RECAVA-RETIC network.
The multi-pixel photon counter (MPPC) or silicon
photo-multiplier (SiPM), recently introduced as a solid-state photodetector, consists of an array of Geiger-mode photodiodes(microcells). is a promising device for PET thanks to its potential for high photon detThe multi-pixel photon counter (MPPC) or silicon
photo-multiplier (SiPM), recently introduced as a solid-state photodetector, consists of an array of Geiger-mode photodiodes(microcells). is a promising device for PET thanks to its potential for high photon detection efficiency (PDE) and
immunity to high magnetic fields. is also very easy to use, with simple electronic read-out, high gain and small size. In this work
we evaluate the performance of three 1 x 1 mm2 and one 6 x 6 mm2 (2 x 2 array) SiPMs offered by Hamamatsu for their use in PET. We examine the dependence of the energy resolution and
the gain of these devices on the thermal and reverse bias when coupled to LYSO scintillator crystals. We find that the 400 and 1600 microcells models and the 2 x 2 array are suitable for small size crystals, like those employed in high resolution small animal scanners. The good performance of these devices up to 7 Tesla has also been confirmed.[+][-]
