Patent ID: 7728300
Filing Date: 2010-06-01
Classification: G01T

Abstract:
1. A radiation image detector comprising: a voltage-applied electrode, to which a voltage is applied; a semiconductor layer for generating charges by irradiation with radiation; and an electrode for detecting an electric signal corresponding to the dose of the radiation, which are superposed one on another, the radiation image detector further comprising: a charge injection prevention layer that covers at least the edge of the voltage-applied electrode; and a protruding electrode provided on the upper surface of the charge injection prevention layer, wherein the side surface of an edge of the protruding electrode is located on the outer side of the side surface of the edge of the voltage-applied electrode and the side surface of the other edge of the protruding electrode is located at the position of the side surface of the edge of the voltage-applied electrode or on the inner side thereof, wherein the protruding electrode is provided along the outer circumference of the voltage-applied electrode and is in contact with the voltage-applied electrode.