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Chinese Optics Letters

Chinese Optics Letters


  • Editor: Zhizhan Xu
  • Vol. 10, Iss. 12 — Dec. 1, 2012
  • pp: 121101–121101

Phase retrieval for hard X-ray computed tomography of samples with hybrid compositions

Huiqiang Liu, Yuqi Ren, Han Guo, Yanling Xue, Honglan Xie, Tiqiao Xiao, and Xizeng Wu  »View Author Affiliations

Chinese Optics Letters, Vol. 10, Issue 12, pp. 121101-121101 (2012)

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X-ray tomography of samples containing both weakly and strongly absorbing materials are necessary in material and biomedical imaging. Extending the validity of the phase-attenuation duality (PAD) method, the propagation-based phase-contrast computed tomography (PPCT) of a sample with hybrid compositions of both the light and dense components with 60 keV of synchrotron radiation is investigated. The experimental results show that the PAD-based PPCT is effective in imaging both the weakly and strongly absorbing components simultaneously. Compared with the direct PPCT technique, the PAD-based PPCT technique demonstrates its excellent capability in material discrimination and characterization. In addition, the PAD-based PPCT exhibits a striking performance on the image contrast enhancement and noise suppression. Therefore, this technique is useful for material and biomedical imaging applications, especially when the radiation dose involved imposes a serious constraint.

© 2012 Chinese Optics Letters

OCIS Codes
(100.5070) Image processing : Phase retrieval
(110.6960) Imaging systems : Tomography
(170.3010) Medical optics and biotechnology : Image reconstruction techniques
(340.7440) X-ray optics : X-ray imaging

ToC Category:
Imaging Systems

Huiqiang Liu, Yuqi Ren, Han Guo, Yanling Xue, Honglan Xie, Tiqiao Xiao, and Xizeng Wu, "Phase retrieval for hard X-ray computed tomography of samples with hybrid compositions," Chin. Opt. Lett. 10, 121101-121101 (2012)

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