Verwendung eines Markers zur Bestimmung der Projektionsgeometrie einer Röntgen-CT-Vorrichtung sowie Festlegevorrichtung für ein Prüfobjekt bei einem Röntgen-CT-Verfahren

• Main Author: Herold, Frank
• Format: Patent
• Language: German
• Published: 25.10.2018
• Subjects: CALCULATING; COMPUTING; COUNTING; IMAGE DATA PROCESSING OR GENERATION, IN GENERAL; INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

The invention relates to the use of at least one marker for determining the projection geometry of an X-ray CT device, which has an X-ray source with a focus function, an X-ray detector, and a test object located between the X-ray source and the X-ray detector, during a non-destructive examination of a test object using an X-ray CT method. The at least one marker consists of a material which is transparent to X-rays and is stationary relative to a test object while the X-ray CT method is being carried out, said test object be moved within the X-ray CT device by a manipulator. The invention also relates to a fixing device for a test object in an X-ray CT method, said device being made of a material which has a mass weakening coefficient that is as low as possible and on which at least one marker is attached in a stationary manner, wherein the marker consists of a material which is transparent to X-rays.