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Title: Air-core grid for scattered x-ray rejection

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.
Inventors:
;
Issue Date:
OSTI Identifier:
106707
Assignee:
Univ. of California, Oakland, CA (United States) PTO; SCA: 420500; 550602; PA: EDB-95:137218; SN: 95001461625
Patent Number(s):
US 5,455,849/A/
Application Number:
PAN: 8-299,387
Contract Number:
W-7405-ENG-48
Resource Relation:
Other Information: PBD: 3 Oct 1995
Research Org:
University of California
Country of Publication:
United States
Language:
English
Subject:
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

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