To normally compose an image without failing to acquire image information in an imaging range in radiographic equipment performing an imaging by disposing a plurality of detector units incorporating solid-state detectors, composing image signals outputted from the detector units based on the disposition and acquiring the image signals.

When vertically one-dimensionally disposing the detector units 2a, 2b and 2c with solid detectors 20 in the respective detector units overlapped with one another, retaining them in a detector unit retainer part 4, and composing the image signals outputted from three detector units, this radiographic equipment magnifies the image signals outputted from the detector units 2a and 2c by b/a times based on a ratio of a distance (b) between an X-ray source 8 and the detector unit 2b to a distance (a) between the X-ray source 8 and the detector units 2a and 2c using the detector unit 2b as a reference, and composes the image signals outputted from the detector units 2a and 2c after the magnification and the image signals outputted from the detector unit 2b.