Novel Silicon Photomultipliers for PET Application

Author

Llosa, Gabriela ; Battiston, Roberto ; Bisogni, Maria G. ; Boscardin, Maurizio ; Collazuol, Gianmaria ; Corsi, F. ; Dalla Betta, G.F. ; Del Guerra, Alberto ; Dinu, N. ; Levi, G. ; Marcatili, S. ; Moehrs, S. ; Marzocca, Cristoforo ; Piemonte, C. ; Pozza, A

Author_Institution

INFN sezione di Pisa

Volume

3

fYear

2006

fDate

Oct. 29 2006-Nov. 1 2006

Firstpage

1875

Lastpage

1879

Abstract

Silicon photomultipliers (SiPMs) with quantum efficiency maximized for a wavelength between 420 and 470 nm have been developed at ITC-irst Trento (Italy), and are being tested for their application in the construction of a ultra high resolution small animal PET tomograph. The devices have an area of 1 mm times 1 mm and 625 microcells. The breakdown voltage is around 30 V, and the gain of the order of 10⁶. The intrinsic timing resolution is 70 ps rms at the single photoelectron level. The first tests as readout for scintillators show an energy resolution of 21 % FWHM with Na-22 employing LSO crystals. The first matrices of SiPMs have been produced and are being tested.

Keywords

photomultipliers; positron emission tomography; scintillation counters; 420 to 470 nm; LSO crystals; PET tomography; quantum efficiency; scintillators; silicon photomultipliers; Charge carrier processes; Detectors; Energy resolution; Microcell networks; Photomultipliers; Positron emission tomography; Silicon; Solid state circuits; Testing; Timing;

fLanguage

English

Publisher

ieee

Conference_Titel

Nuclear Science Symposium Conference Record, 2006. IEEE

Conference_Location

San Diego, CA

ISSN

1095-7863

Print_ISBN

1-4244-0560-2

Electronic_ISBN

1095-7863

Type

conf

DOI

10.1109/NSSMIC.2006.354259

Filename

4179372