Air-core grid for scattered x-ray rejection

Patent · Tue Oct 03 00:00:00 EDT 1995

OSTI ID:106707

Logan, C M; Lane, S M

The invention is directed to a grid used in x-ray imaging applications to block scattered radiation while allowing the desired imaging radiation to pass through, and to process for making the grid. The grid is composed of glass containing lead oxide, and eliminates the spacer material used in prior known grids, and is therefore, an air-core grid. The glass is arranged in a pattern so that a large fraction of the area is open allowing the imaging radiation to pass through. A small pore size is used and the grid has a thickness chosen to provide high scatter rejection. For example, the grid may be produced with a 200 {micro}m pore size, 80% open area, and 4 mm thickness. 2 figs.

• Research Organization: Univ. of California (United States)
• DOE Contract Number: W-7405-ENG-48
• Assignee: Univ. of California, Oakland, CA (United States)
• Patent Number(s): US 5,455,849/A/
• Application Number: PAN: 8-299,387
• OSTI ID: 106707
• Resource Relation: Other Information: PBD: 3 Oct 1995
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING NOT INCLUDED IN OTHER CATEGORIES
55 BIOLOGY AND MEDICINE
BASIC STUDIES
X-RAY EQUIPMENT
DESIGN
IMAGES
RADIATION TRANSPORT
X RADIATION
SCATTERING
X-RAY RADIOGRAPHY
BIOMEDICAL RADIOGRAPHY