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Optica Publishing Group
  • Chinese Optics Letters
  • Vol. 12,
  • Issue 2,
  • pp. 023401-
  • (2014)

Pseudo-global tomography for local micro-computed tomography with high-brightness synchrotron X-rays

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Abstract

The computed tomography imaging of a local region inside a sample with a size larger than the field of view is particularly important for synchrotron X-ray imaging. In this letter, an improved algorithm is proposed to reconstruct the local structure inside a sample using almost completely local data. The algorithm significantly reduces the X-ray radiation dose and improves computational efficiency. Simulation results show that the new algorithm works well and has a higher reconstruction precision than previous methods, as confirmed by experimental results carried out at the Shanghai Synchrotron Radiation Facility.

© 2014 Chinese Optics Letters

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