| CPC A61B 6/542 (2013.01) [A61B 6/4233 (2013.01); A61B 6/4291 (2013.01); A61B 6/547 (2013.01); A61B 2560/0276 (2013.01)] | 12 Claims |
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1. A radiation imaging system comprising:
a pixel array including, in an imaging region where a plurality of pixels for acquiring radiation image data by imaging performed based on emitted radiation is arranged in a matrix, a detection pixel group in which a plurality of detection pixels for detecting a dose of the radiation is arranged in a row direction; and
one or more control units configured to control the imaging,
wherein a grid disposed on a side of the imaging region on which the radiation is incident can be used, the grid having a stripe structure in which a strip-shaped radiation transmissive layer and a strip-shaped radiation absorption layer that extend in a first direction are alternately arranged in a second direction orthogonal to the first direction,
wherein the one or more control units is configured to execute a mode in which the imaging is controlled using signals from the detection pixel group,
wherein the radiation imaging apparatus further comprises a determination unit configured to make a determination as to whether the mode is executable by the one or more control units, based on information about an angle between the row direction and the first direction, and
wherein the one or more control unit is configured not to control the imaging even if the one or more control units receives a signal for issuing the instruction to emit the radiation from a switch for instructing a radiation source configured to emit the radiation to emit the radiation, in a case where the determination unit determines, upon receipt of the instruction, that the mode is not executable.
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