The disclosed radiograph acquisition device (24, 26, 28, 40) has: a selection unit (159) that selects one radiation detection device from among a plurality of radiation detection devices (52, 62, 72) that can convert radiation (56) to radiographs and an acquisition unit (40) that acquires the radiograph of one radiation detection device when radiation (56) is radiated at a subject (42), and the radiograph of at least one other radiation detection device aside from the one radiation device among the plurality of radiation detection devices (52, 62, 72).
