Jun 13 – 15, 2012
LAL Orsay
Europe/Paris timezone

Characterization of a recently developed SiPM for PET

Jun 13, 2012, 12:15 PM
1h 45m
Hall (LAL Orsay)


LAL Orsay

Poster Posters A


Florian Schneider (TU München Klinikum rechts der Isar Nuklearmedizin)


SiPMs are nowadays available from varying manufacturers. The investigated device was the latest KETEK PM3350. Its peak sensitivity is for blue light, it has an active area of 3 x 3 mm² with 50 µm cell size and operates in a large bias region from 24 - 32 V. The active area is covered with an epoxy layer and the package is kept at the smallest possible size of 3.9 x 4.4 x 2.0 mm³ We determined the performance of the SiPM. From the single-photon spectra measured with a pulsed blue LED, we extracted the breakdown voltage (22.8 V) and photodetection efficiency (up to 40%). Without illumination, the darkcount rate (1.5 MHz @ 26 V), I-V characteristics, single cell resistivity (0.6 MOhm), crosstalk (13% @ 26 V) and afterpulsing have been determined. The SiPM shows a very small temperature coefficient which is one of the main advantages of the device. Since our later application for the SiPMs is a prototype of a small animal Positron-Emimission Tomograph for simultaneous PET/MRI (Magnetic Resonance Imaging), we also aquired energy spectra with LYSO and different radioactive sources. The SiPM shows promising performance. We will present our results as well as measurement methods.

Primary author

Florian Schneider (TU München Klinikum rechts der Isar Nuklearmedizin)


Dr Dieter Renker (TU München Physik Department E17) Prof. Sibylle Ziegler (TU München Klinikum rechts der Isar Nuklearmedizin)

Presentation materials