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Time of flight (TOF) measurements in positron emission tomography (PET) are very challenging in terms of timing performance, and should achieve ideally less than 100 ps FWHM precision. We present a time-based differential technique to read out SiPMs that has less than 25 ps rms electronic jitter. The novel readout is a fast front end circuit (NINO) based on a first stage differential current mode...
We have studied the performance of recently developed solid state photomultipliers (SSPMs) with 2.1times2.1 mm2 sensitive area as a readout for small LSO, (Lu-Y)AP:Ce and PWO-II scintillator crystals. The SSPM is based on the p+-p-n+ structure which was optimized for blue/UV light detection. It operates at a gain of >105 and shows >25% photon detection efficiency in the 380-600 nm spectral range...
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