We present a multi-channel digital Silicon photomultipliers (MD-SiPM) capable of detecting and timestamping up to 48 photons and we show the advantage of generating multiple timestamps in the context of positron emission tomography (PET). The MD-SiPM has a size of 800 µm ×800 µm and comprises 416 pixels. Three versions of the pixel exists with 1, 1.5, and 2 bit counters; the effects of different counting resolutions, dead time, and afterpulsing are also discussed.

© 2013 IEICE

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