| CPC A61B 6/4291 (2013.01) [A61B 6/542 (2013.01)] | 5 Claims |
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1. An x-ray radiation imaging apparatus that is able to perform radiography using a grid in which an x-ray radiation transmissive layer and an x-ray radiation absorption layer each having a strip shape and extending in a first direction are alternately arranged in a second direction, the x-ray radiation imaging apparatus comprising:
a pixel unit including a plurality of imaging pixels for acquiring an x-ray radiation image and a plurality of detection pixels for detecting a dose of x-ray radiation that are disposed in an imaging region;
a driving unit configured to drive the plurality of imaging pixels and the plurality of detection pixels;
a reading unit configured to read out a signal from each of the plurality of imaging pixels and the plurality of detection pixels; and
a control unit configured to determine an amount of x-ray radiation being emitted to the x-ray radiation imaging apparatus,
wherein the plurality of detection pixels includes a first detection pixel and a second detection pixel that are in a pair in the second direction, an output signal value of the first detection pixel is larger than an average value of output signal values of the plurality of imaging pixels and the plurality of detection pixels, and an output signal value of the second detection pixel is smaller than the average value,
wherein a plurality of pairs of the first detection pixel and the second detection pixel is disposed in an aperiodic arrangement.
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