RADIATION DETECTION DEVICE

摘要

PURPOSE: To provide a radiation detection device to block through-discharge due to the concentration of an electrical field at the edge of a voltage applying electrode formed on the surface of a radiation sensitive semiconductor film and capable of assuring a stable detection operation for a long period. CONSTITUTION: A high withstand voltage insulation material 3 is formed between a radiation sensitive amorphous semiconductor film 1 adaptable to a tendency for an increase in an area and the edge 2A of a voltage applying electrode 2. As a result, the concentration of an electrical field to the edge 2A of the voltage applying electrode is eliminated, and the preliminary phenomenon of through discharge and discharge breakdown do not occur.