High performance x-ray anti-scatter grid
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.
- Issue Date:
- 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