Tomodensitometry with X- and Gamma-Rays

  • J. Goebbels
  • H. Heidt
  • B. Illerhaus
  • P. Reimers
Conference paper

Summary

For materials testing computerized tomography (CT) offers the great advantage to produce nondestructively maps of the local X-ray absorption inside an object. For radiation sources in the energy range between 0.2 and 1.5 MeV the absorption is proportional to the density. Therefore with CT the density distribution can be determined. For simple cases the absolute value of the density can be measured.

All measurements to be presented are made with the two tomographs developed at BAM especially for materials testing. The density resolution is about 1%.

Applications on concrete, powder metallurgical parts and ceramics are given. The last two groups of materials are compared for the green and sintered state.

Keywords

Attenuation Sedimentation Emissivity 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    Buresch, F:E:; Meyer, W.: Safety Evaluation of Structural Ceramic Components Materialprüfung 30 (1986) 205–207.Google Scholar
  2. 2.
    Heidt, H.; Goebbels, J.; Reimers, P.; Kettschau, A. Development and Application of an Universal CAT-Scanner Proc. 11th WCNDT, pp. 664–671 Las Vegas, Nov. 3–8, 1985Google Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 1989

Authors and Affiliations

  • J. Goebbels
    • 1
  • H. Heidt
    • 1
  • B. Illerhaus
    • 1
  • P. Reimers
    • 1
  1. 1.Bundesanstalt für Materialforschung und -prüfung (BAM)Berlin 45Deutschland

Personalised recommendations