Focusing and guiding X-rays with tapered capillaries

US5001737A · kind A · utility

Inventors

• Aaron Lewis · Jerusalem, IL
• Edward A. Stern · Seattle, US
• Yizhak Yacoby · Jerusalem, IL

Key dates

• Filing date: Mar 7, 1990
• Grant date: Mar 19, 1991
• Expiry date: Mar 7, 2010

Classification

• Technology area (CPC G): Physics
• CPC primary: G21K2201/064
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

Apparatus for directing and focusing X-rays by the new method of confinement is disclosed. A capillary having an inlet end and an outlet end with a generally tubular or rectangular inner wall surface defines a longitudinal central opening. The central opening is tapered inwardly from the inlet end to the outlet end. X-rays are directed into the inlet end at angles less than the critical glancing angle for the inner wall surface to direct X-rays through the capillary to a focus point near the capillary outlet end.