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Title: High performance x-ray anti-scatter grid

An x-ray anti-scatter grid for x-ray imaging, particularly for screening mammography, and method for fabricating same, x-rays incident along a direct path pass through a grid composed of a plurality of parallel or crossed openings, microchannels, grooves, or slots etched in a substrate, such as silicon, having the walls of the microchannels or slots coated with a high opacity material, such as gold, while x-rays incident at angels with respect to the slots of the grid, arising from scatter, are blocked. The thickness of the substrate is dependent on the specific application of the grid, whereby a substrate of the grid for mammography would be thinner than one for chest radiology. Instead of coating the walls of the slots, such could be filed with an appropriate liquid, such as mercury.
  1. (Pleasanton, CA)
Issue Date:
OSTI Identifier:
Regents of University of California (Oakland, CA) LLNL
Patent Number(s):
US 5418833
Contract Number:
Research Org:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Country of Publication:
United States
performance; x-ray; anti-scatter; grid; imaging; particularly; screening; mammography; method; fabricating; x-rays; incident; direct; path; pass; composed; plurality; parallel; crossed; openings; microchannels; grooves; slots; etched; substrate; silicon; walls; coated; opacity; material; gold; angels; respect; arising; scatter; blocked; thickness; dependent; specific; application; whereby; thinner; chest; radiology; coating; filed; appropriate; liquid; mercury; ray imaging; specific application; x-ray imaging; x-rays incident; screening mammography; x-ray anti-scatter; rays incident; anti-scatter grid; /378/