High performance x-ray anti-scatter grid

Title: High performance x-ray anti-scatter grid

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Disclosed are 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. 4 Figs.

Inventors:: Logan, C.M.

Issue Date:: 1995-05-23

OSTI Identifier:: 55815

Assignee:: University of California, Oakland, CA (United States) PTO; SCA: 550602; PA: EDB-95:087056; SN: 95001393845

Patent Number(s):: US 5,418,833/A/

Application Number:: PAN: 8-281,550

Contract Number:: W-7405-ENG-48

Resource Relation:: Other Information: PBD: 23 May 1995

Research Org:: University of California

Country of Publication:: United States

Language:: English

Subject:: 55 BIOLOGY AND MEDICINE, BASIC STUDIES; MAMMARY GLANDS; BIOMEDICAL RADIOGRAPHY; X-RAY EQUIPMENT; DESIGN; FABRICATION; SCATTERING; X RADIATION

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