Optimal Specimen Placement in Cone Beam X-ray Computed Tomography

Christoph Heinzl, Johann Kastner, Artem Amirkhanov, Eduard Gröller, Christian Gusenbauer

Research output: Contribution to journalArticlepeer-review

17 Citations (Scopus)


Picking a specimens optimal placement on the rotary plate of a cone beam X-ray computed tomography system is a time-consuming but critical task in its application. Due to suboptimal placements artifacts, irregularities and distortions may result, which hinder or prevent reliable evaluations. To determine the optimal specimen placement a method is introduced, which allows analyzing and assessing potential specimen placements. Based on the specimens 3D geometrical model the analysis considers X-ray penetration lengths, the specimens Radon space representation as well as the placements stability. The results are visually represented and analyzed in placement maps, revealing areas prone to artifacts.

Original languageEnglish
Pages (from-to)42-49
Number of pages8
Issue number99
Publication statusPublished - Sept 2012


  • Computed tomography
  • Dreamcaster
  • Optimal specimen placement


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