DETECTOR, PET APPARATUS, AND X-RAY CT DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a detector that can improve the characteristics such as a time resolution in the entire detector; and a PET device and X-ray CT device that use the same.SOLUTION: A detector comprises a plurality of semiconductor chips S1 that are arranged on a wiring board via bump electrodes so as to be two-dimensionally separated from each other. Each of the semiconductor chips S1 comprises: a semiconductor substrate that has a plurality of light detection units; an insulating layer that is formed on a surface of the semiconductor substrate; a common electrode that is arranged on the insulating layer; read wire that electrically connects between quenching resistors of the individual light detection units and the common electrode; and a through electrode that extends from the common electrode to a back surface of the semiconductor substrate via a through hole of the semiconductor substrate.