Patent ID: 8071980

Claim:
A radiation detector comprising: a charge conversion layer that generates a charge consequent to incident radiation in a state in which a bias voltage is applied; a substrate that is provided below the charge conversion layer, the substrate including a lower electrode portion that collects the charge generated by the charge conversion layer; an electrode layer that includes an upper electrode portion that is laminated on the charge conversion layer and is for applying the bias voltage to the charge conversion layer, and an extended electrode portion that extends from the upper electrode portion down a side face of the charge conversion layer to a region on the substrate at which the charge conversion layer is not present; an intermediate layer that is formed continuously from between the charge conversion layer and the upper electrode portion to between the extended electrode portion and the substrate, the intermediate layer increasing adhesion between the extended electrode portion and the substrate; and wiring that is electrically connected with the extended electrode portion at the region on the substrate at which the charge conversion layer is not present, and that applies the bias voltage from the extended electrode portion to the charge conversion layer via the upper electrode portion; wherein an area of the intermediate layer is larger than an area of the charge conversion layer, and the area of the intermediate layer is larger than those of the upper electrode portion and the extended electrode portion.