A method of managing radiation detectors allows the radiation detectors to be assembled into a radiographic image capturing apparatus such that defective pixels of the radiation detectors are not disposed at the same pixel position (coordinates). The method comprises the steps of recognizing the positions of defective pixels of a plurality of manufactured radiation detectors, referring to the recognized positions of the defective pixels, and assembling at least two radiation detectors into the radiographic image capturing apparatus in a superposed relationship, such that the defective pixels of the radiation detectors are not superposed one on the other.