89 results about "Anti-scatter grid" patented technology

Anti-scatter grid is a device for limiting the amount of radiation scatter created in a radiographic exposure reaching the detector. The grid is constructed of a series of alternating parallel strips of lead and a radiolucent substance such as a plastic, carbon fibre, aluminium, even paper. The grid is placed between the patient and the detector during the exposure. Primary beam radiation passes through the radiolucent strips as it travels roughly parallel to them, but scattered radiation which has, almost by definition, deviated from the parallel beam, cannot easily pass through the grid as it encounters the lead strips at an angle, and is attenuated, or lost, from the beam.