Adaptive X-ray filter

US9263163B2 · kind B2 · utility

Assignee

• Siemens Aktiengesellschaft · DE

Inventors

• Philipp Bernhardt · Forchheim, DE
• Hans Liegl · Erlangen, DE
• Reiner Schulz · Remscheid, DE

Key dates

• Filing date: May 2, 2013
• Grant date: Feb 16, 2016
• Expiry date: Feb 25, 2034

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61B6/4035
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

An adaptive X-ray filter for varying a local intensity of X-ray radiation includes a first chamber containing a magnetorheological or electrorheological first liquid, a second chamber containing a second liquid that absorbs X-ray radiation, and a flexible membrane that separates the first chamber from the second chamber. Using the flexible membrane, a layer thickness ratio of the first liquid and the second liquid may be varied. A heating apparatus that heats the second liquid is arranged in the adaptive X-ray filter. The second liquid is a liquid metal.