Semiconductor photomultiplier with baseline restoration for a fast terminal signal output including output loads to correct an overshoot of an output signal

摘要

A semiconductor photomultiplier (SPM) device is described. The SPM comprises a plurality of photosensitive elements, a first electrode arranged to provide a bias voltage to the photosensitive elements, a second electrode arranged as a biasing electrode for the photosensitive elements, a plurality of quench resistive elements each associated with a corresponding photosensitive element, a plurality of output loads; a first node of each output load is common to one of the photosensitive elements and the corresponding quench element; and a third electrode provides an output signal from the photosensitive elements; the third electrode is coupled to a second node of the respective output loads; the outputs loads fully or partially correct an overshoot of the output signal on the third electrode.