Three-dimensional focused anti-scatter grid and method for manufacturing thereof

摘要

A device for, and method of manufacture of, a focused anti-scatter grid for improving the image contrast of x-ray images produced in medical, veterinary or industrial applications. The grid comprising a series of modular units so juxtaposed with each other as to form a series of focused channels for the passage of the focused imaging x-rays. The modules comprise a series of focusing ribbons of a heavy metal or a series of mating solid arcuate forms, formed of a polymer and having on at least one side surface a layer of heavy metal.

主权项

1. A focused grid comprising: a plurality of modules, each module comprising alternating radiation transparent materials and radiation-absorbent materials, the modules being formed of arc-shaped molded polymer material covered along at least one side surface with a heavy metal layer, the top and bottom surfaces of each module being arcuate in two orthogonal directions, the modules forming each grid being substantially identical to each other so that when a plurality of the modules are mated together, the mated modules form a spherical section, and focused channels for the passage of x-radiation are formed through the polymer material, between the heavy metal layers of adjacently positioned modules; and a frame onto which the plurality of module are mounted and secured in the desired juxtaposition.