The present invention provides a radiographic imaging including, provided at an insulating substrate, sensor portions for radiation detection that generate charges due to receive radiation or light converted from radiation, first signal lines that are connected to the sensor portions for radiation detection and through which flow electric signals that correspond to the charges generated at the sensor portions for radiation detection, and second signal lines having a substantially same wiring pattern as the first signal lines. Detection of radiation is carried out on the basis of a difference between an electric signal flowing through the first signal line and an electric signal flowing through the second signal line, or a difference between values of digital data obtained by digitally converting an electric signal flowing through the first signal line and an electric signal flowing through the second signal line, respectively.