X-ray anti-scatter grid
US9213005B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 4, 2013 |
| Grant date | Dec 15, 2015 |
| Priority date | — |
| Expiry date | Mar 29, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG21K1/025
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An X-ray anti-scatter grid having thinner X-ray opaque layers, smaller X-ray opaque diameters, greater aspect ratio, lower weight and improved image resolution is disclosed. A method of forming the X-ray anti-scatter grid is disclosed that includes a set of hollow X-ray transparent glass capillary tubes that are fused together, with an X-ray opaque layer thick enough to block X-rays at a specified energy inside the capillary tubes. The capillary tubes provide the high aspect ratio and light weight, while the X-ray opaque layer is provided by a deposition process that has features similar to atomic layer deposition (ALD). The high aspect ratio and thin layers improves resolution and decreases image artifacts, and large area X-ray anti-scatter grids are provided by aligning the axis of the an X-ray opaque layers to the X-ray source.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.