New results from a test of silicon photomultiplier as readout for PET

Author

Otte, A. Nepomuk ; Barral, Joëlle ; Dolgoshein, Boris ; Hose, Jürgen ; Klemin, Sergei ; Lorenz, Eckart ; Mirzoyan, Razmick ; Popova, Elena ; Teshima, Masahiro

Author_Institution

Max-Planck-Inst. fur Phys., Munich, Germany

Volume

6

fYear

2004

fDate

16-22 Oct. 2004

Firstpage

3738

Abstract

The silicon photomultiplier (SiPM) is a novel photon detector based on Geiger mode operating avalanche photodiodes. In this paper we present experimental results which show that SiPMs can be used in positron emission tomography (PET). As scintillator we use the newly developed LYSO material, which has very similar characteristics to the widely used LSO. With our setup we measure an energy resolution of (21.5±0.5)% and a coincidence time resolution of (1.51±0.07) ns, both full width at half maximum. A significant improvement in time resolution could be achieved by triggering on the first photoelectron in the signal. We also present the coincidence rate of two detector channels vs. the position of a small pointlike ²²Na positronium source.

Keywords

avalanche photodiodes; photomultipliers; positron emission tomography; positronium; silicon radiation detectors; ²²Na; ²²Na positronium source; APD; Geiger mode operating avalanche photodiode; PET; detector channel; lutetium yttrium orthosilicate; photoelectron triggering; photon detector; positron emission tomography; silicon photomultiplier; time resolution; Avalanche photodiodes; Detectors; Energy measurement; Energy resolution; Photomultipliers; Positron emission tomography; Signal resolution; Silicon; Testing; Time measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Nuclear Science Symposium Conference Record, 2004 IEEE

ISSN

1082-3654

Print_ISBN

0-7803-8700-7

Electronic_ISBN

1082-3654

Type

conf

DOI

10.1109/NSSMIC.2004.1466693

Filename

1466693