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Computed laminography for materials testing

: Reiter, H.; Zhou, J.; Arnold, W.; Maisl, M.

Applied Physics Letters 68 (1996), Nr.24, S.3500-3502
ISSN: 0003-6951
ISSN: 1077-3118
Fraunhofer IZFP ()
computerised laminography; Computerlaminographie; nondestructive testing; Röntgenstrahlung; x-ray; zerstörungsfreie Prüfung

We have developed a computed laminography system for the inspection of large of flat objects using x-rays. By this new laminographic method only a translation of the object is necessary. Both the x-ray source and the detector remain stationary. Object cross sections are reconstructed from digital prjections taken during the object motions and for the reconstruction well-known algorithms are used. By use of a microfocus x-ray tube and a line detector, objects can be inspected with a slice resolution of about 50 mu m independent of the object size.