A radiographic apparatus includes a radiation sensor panel and a housing that encloses the panel. The radiation sensor panel has a detection surface on which a converting element that detects radiation or light is disposed. The housing includes an incident, a slope, and a flat surface portion. Radiation enters the radiographic apparatus through the incident portion, which is located adjacent to the detection surface. The slope portion is located at a housing end portion and on a radiation sensor panel side opposite to the detection surface. The slope portion is inclined with respect to a direction of a housing thickness. The flat surface portion is located on the side of the radiation sensor panel opposite to the detection surface and is substantially parallel to a flat portion of the incident portion. The slope portion has an average thickness that is greater than an average thickness of the flat surface portion.
