Patent ID: 7786446

Claim:
A radiation detector comprising: a charge conversion layer that generates charges in response to radiation incident thereon; a substrate disposed under the charge conversion layer and having a lower electrode that collects the charges generated by the charge conversion layer; a protection member projecting from the outer periphery of the substrate and surrounding the charge conversion layer; an upper electrode layered on the charge conversion layer that applies a bias voltage to the charge conversion layer; an extended electrode extending from the upper electrode to a portion outside of an inner wall of the protection member, the inner wall being located on the charge conversion layer side when viewed in a cross section; a conductor electrically connected outside of the inner wall to the extended electrode that applies a bias voltage from the extended electrode to the charge conversion layer through the upper electrode; and an intermediate layer formed from between the charge conversion layer and the upper electrode to between the extended electrode and the substrate, wherein the intermediate layer increases the joint force between the extended electrode and the substrate and wherein the intermediate layer comprises a charge injection blocking layer.