Radiation imaging apparatus, radiation imaging system, and control method for the radiation imaging apparatus

摘要

A radiation imaging apparatus includes a pixel array (101) including a plurality of pixels (110) arranged in a matrix in which each pixel includes a conversion element (S) configured to convert radiation into a charge and a switch element (T) configured to transfer an electric signal based on the charge, a plurality of wirings arranged in the pixel array, and a detecting unit configured to detect radiation irradiation to the pixel array, in which the detecting unit includes a detecting circuit (108a) configured to detect the radiation irradiation to the pixel array on the basis of a plurality of currents flowing through the plurality of wirings detected for each of the plurality of wirings.