Radiation imaging apparatus and imaging system

摘要

A radiation imaging apparatus (100), comprising an imaging unit (101) in which a plurality of pixels (201) are arranged to form a plurality of rows and a plurality of columns, and a control unit (108) configured to control the imaging unit so as to perform reset operation for initializing each of the plurality of pixels repeatedly, and readout operation, after the reset operation, for reading out a signal from each of the plurality of pixels sequentially, wherein one cycle length of the reset operation is shorter than a period of time required for the readout operation, and a pulse width of a signal supplied to each of the plurality of pixels in the reset operation is shorter than a pulse width of a signal supplied to each of the plurality of pixels in the readout operation.