BODY SECTION RADIOGRAPHIC APPARATUS, AND A NOISE REMOVING METHOD FOR THE BODY SECTION RADIOGRAPHIC APPARATUS

摘要

A body section radiographic apparatus for serially acquiring a series of fluoroscopic images while synchronously moving a radiation source and a radiation detecting device, and obtaining a sectional image of a subject from the series of fluoroscopic images. The apparatus includes, besides the radiation source which emits a beam of radiation and the radiation detecting device which is opposed to the radiation source and has a plurality of radiation detecting elements, a synchronous moving device for moving the radiation source and the radiation detecting device synchronously with each other, and a radiation grid disposed to cover a radiation detecting plane of the radiation detecting device for removing scattered radiation. The fluoroscopic images are serially acquired while moving the radiation grid relative to the radiation detecting device to change positions where radiation transmission unevenness of the radiation grid is projected on the radiation detecting device.