Abstract
Multi-Pixel Photon Counter (MPPC) is a family of Silicon Photomultipliers (SiPMs), the feature of which are insensitivity to magnetic fields and good timing resolution making it suitable for applications such as time-of-flight positron emission tomography/magnetic resonance (TOF-PET/MR). A new series of MPPCs are available which have low after pulses, low quenching resistance variation and high photon detection efficiency (PDE). In addition a 4-side buttable package has been developed with through via technology, which makes it easy to fabricate a large area MPPC array with low dead space. In this paper, timing resolution measurements of several kinds of MPPCs are presented.
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