Patent ID: 7928401

Claim:
A radiation detecting system comprising an electric voltage imparting electrode through which a bias electric voltage is applied, a recording photoconductive layer which comprises a-Se and generates electric charges in response to receipt of projection of radiation, a carrier collecting electrode, a charge storing portion which stores electric charges generated in the recording photoconductive layer and a switching element for reading out charge signal stored in the charge storing portion, superposed one on another in this order, wherein the radiation detecting system comprises: an organic resin dielectric layer which is not smaller than 0.01 μm and smaller than 1 μm in thickness, not lower than 10 12 Ωcm in specific resistance and 6×10 −6 to 1.5×10 −4 /° C. in thermal expansion coefficient, between the recording photoconductive layer and the electric voltage imparting electrode, and a carrier-selective semi-insulating layer between the organic resin dielectric layer and the electric voltage imparting electrode.