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Beam hardening and metal artefacts

Beam hardening and metal artefacts

Item no.: P2550800
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Principle

X-ray sources produce a polychromatic spectrum which is altered when interacting with the sample. Due to this alteration, cupping effects in the reconstructed data of a CT scan. In extreme cases, such as when metal objects are present in the sample, more severe artefacts occur at the location of the metallic components. Also when the X-ray photon do not succeed to get through the metal (photon starvation), incorrect representation of the sample occurs in the reconstructed data.

Tasks

  1. Evaluate beam hardening and improve the results
  2. Evaluate metal artefacts

What you can learn about

  • Beam hardening
  • Cupping effect
  • Beam hardening correction
  • Metal artefacts
  • Photon starvation

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