Fraunhofer-Gesellschaft

Publica

Hier finden Sie wissenschaftliche Publikationen aus den Fraunhofer-Instituten.

XXL-CT, unique CT capabilities for industrial applications

 
: Salamon, Michael; Reims, Nils; Errmann, Gerald; Boehnel, Michael; Uhlmann, Norman; Kasperl, Stefan; Voland, Virginia; Schmitt, Michael; Hanke, Randolf

Kastner, J. ; FH Oberösterreich, Wels; Österreichische Gesellschaft für zerstörungsfreie Prüfung -ÖGZfP-; Deutsche Gesellschaft für Zerstörungsfreie Prüfung e.V. -DGZfP-, Berlin; Schweizerische Gesellschaft für Zerstörungsfreie Prüfung; Deutsche Gesellschaft für Materialkunde -DGM-, Arbeitskreis Tomografie:
Conference on Industrial Computed Tomography, ICT 2014 : Non-destructive testing, 3D materials characterisation and dimensional measurement; 5th conference, 25th-28th February 2014, University of Applied Sciences Upper Austria, Wels Campus; Proceedings
Aachen: Shaker, 2014
ISBN: 978-3-8440-2557-6
pp.241-242
Conference on Industrial Computed Tomography (ICT) <5, 2014, Wels>
Industrielle Computertomografie Tagung <5, 2014, Wels>
English
Conference Paper
Fraunhofer IZFP ()
Fraunhofer IIS ()
XXL-CT; high energy x-ray; LINAC; SILAC; line detector

Abstract
The increase of Computed Tomography (CT) as an applicable non destractive testing (NDT) an detrology method awakes interest on expanding the application fields, which were rarely used in the past due to their requirements on the imaging system. Especially the classical X-ray generation techniques based on bipolar high voltage (HV) supplies restricted the application fields of CT to typical material penetration lengths of only a few cm of steel. Even with accelerator technology that offers a suitable way to overcome these restrictions just the 2D radioscopy technique found aIdespread application. Beside the production and detection of photons in the MeV ränge itself, the achievable image quality is limited using Standard detectors due to the dominating absorption effect of Compton Scattering at high energies. Especially for CT reconstruction purposes these effects have to be considered on the development path from classical 2D radioscopyto 3D imaging. Most High Energy CT applications are therefore based on line detectors shielding scattered radiation to a maximum with an increase in imaging quality but with time consuming large volume scan capabilities. In this contribution we present the High-Energy X-ray Imaging project at Fraunhofer Development Centre for X-ray Technology with regard to the potential of the CT-system stage according to metrological and other application capabilities.

: http://publica.fraunhofer.de/documents/N-297739.html