| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 295130 | NDT & E International | 2013 | 7 Pages |
Abstract
X-ray tomographic image quality is degraded by radiation scattered in the sample and the environment. In this paper, a computed tomography (CT) system with 450 kV source is optimized for low environmental scattering. Monte Carlo simulations of different CT-configurations predict a reduction of environmental scattering by (81±4)%. An optimized setup is characterized by a large detector housing from thin composite plates, a thin mirror, and cabin walls lined with metallic plates. In radiography experiments, the contrast improves by (22±2)% for 50 mm thick aluminium objects and by (35±4)% for 160 mm thick aluminium parts. The improvement in tomographic imaging matches the radiography results.
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Authors
P. Schuetz, A. Miceli, I. Jerjen, A. Flisch, J. Hofmann, R. Broennimann, U. Sennhauser,