Silicon Photomultipliers (SiPMs) are novel photon counting devices consisting of multiple Avalanche Photodiodes operating in Geiger mode. Their excellent photon counting capability and their compact design make them very promising candidates for the direct read-out of organic and inorganic scintillators in order to construct detectors with unprecedented granularity. We discuss both their application to calorimetry and to Positron Emission Tomography. |
