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  • Received: Jul. 26, 2013

    Accepted: Dec. 12, 2013

    Posted: Jan. 26, 2014

    Published Online: Jan. 26, 2014

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    DOI: 10.3788/col201412.023401

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    Wenhao Chen, Yudan Wang, Huiqiang Liu, Biao Deng, Yushuang Yang, Tiqiao Xiao. Pseudo-global tomography for local micro-computed tomography with high-brightness synchrotron X-rays[J]. Chinese Optics Letters, 2014, 12(2): 023401

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Chinese Optics Letters, Vol. 12, Issue 2, 023401 (2014)

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

Wenhao Chen, Yudan Wang, Huiqiang Liu, Biao Deng, Yushuang Yang, and Tiqiao Xiao

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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.

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