Patent ID: 7978811

Claim:
A radiographic apparatus having a radiation emitting device for emitting radiation toward a patient, and a radiation detecting device for detecting radiation transmitted through the patient, to carry out radiographic imaging by obtaining radiographic images based on the detected radiation, the radiation emitting device and the radiation detecting device being constructed movable parallel to each other in the same direction along a longitudinal direction of the patient, the radiation emitting device emitting radiation and the radiation detecting device detecting radiation transmitted through the patient irradiated while the radiation emitting device and the radiation detecting device move parallel to each other in the same direction relative to the patient, the apparatus comprising an image composing device for combining, in the longitudinal direction, a plurality of radiographic images based on radiation detected whenever a relative movement takes place in the same direction, and a setting device for setting a length of a radiographic image to be composed in the longitudinal direction, the apparatus further comprising an image joining device which, when a set length of the radiographic image in the longitudinal direction is longer than a length of a radiographic image in the longitudinal direction composed by the image composing device, joins in the longitudinal direction a dummy image having a difference in the longitudinal direction between the set length of the radiographic image and the length of the composed radiographic image, and the composed radiographic image.