Newly developed semiconductor detectors by HAMAMATSU

Abstract

We developed the novel photon counting device named Multi-Pixel Photon Counter (MPPC). It is a solid state photon counter using Geiger-mode APD and self-quenching resistor. It has many features like low bias voltage operation, high gain, insensitive to magnetic field and mechanical robustness. The MPPC is one of the products of Si-PM (Silicon Photomultiplier) family, which was originally developed in Russia. HAMAMATSU MPPC is designed as a photon counting device based on structures of a Si APD named "HPK Reverse Structure", which has been adopted by CERN (CMS calorimeter). © Copyright owned by the author(s).