Development and characterization of 16-channel silicon photomultiplier prototype with sub-mm pixels for high-resolution PET system

作者：Shimazoe K^*; Lipovec A; Takahashi H; Wiest F; Iskra P; Ganka T; Kamada K

来源：Journal of Instrumentation, 2014, 9(11): C11018.

DOI：10.1088/1748-0221/9/11/C11018

• Pixelated detectors and associated VLSI electronics
• Photon detectors for UV, visible and IR photons (solid-state)

Silicon photomultipliers (SiPMs) are one of the most promising photodetectors for high-resolution PET systems because of their high gain and fast rise time. The resolution of a modern animal PET scanner is now in the sub-mm range; it has also been reported that an individual readout for pixels is necessary in order to achieve the theoretically best resolution. For achieving sub-mm resolution, a detector with pixelated crystals individually coupled to the photo-detector is ideal. To this end, a prototype 16-channel SiPM with a pitch of 500 m m was designed and fabricated, and its characteristics were studied. Several parameters, such as dark count rate (DCR), gain, crosstalk, and photon detection efficiency (PDE) are characterized in this study. The developed SiPM shows the performance required for future PET detector application.

• 出版日期2014-11