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基于玻恩近似相位恢复的X射线显微CT实验研究 被引量:8

Experimental Investigation on X-Ray Micro-Computed Tomography by Phase Retrieval with Born Approximations
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摘要 结合同轴X射线相位衬度成像(XPCI)中的Born近似相位恢复法和CT技术,实现了基于单一物像距同轴X射线相位衬度CT(IL-XPCT)投影图像的相位恢复切片重构方法。利用上海光源X射线成像及生物医学应用光束线站的单色光开展模型和生物样品(蝗虫)IL-XPCT研究。对比显示,进行相位恢复后,能获得更好的IL-XPCT重构切片和三维重建图像。实验结果表明,本方法具有用于生物活体样品三维无损成像研究的潜力。 Phase retrieval of in line X-ray phase contrast computed tomography(IL-XPCT) with Born approximations is achieved by using images recorded at single sample-to-detector distance.Experiments are carried out at X-ray imaging and biomedical application beamline,by taking a phantom and a locust as the samples.After phase retrieval,much better IL-XPCT slices and three-dimensional rendered images are obtained.The results show that the potential application of the proposed method to three-dimensional non-destructive imaging of biological samples.
出处 《光学学报》 EI CAS CSCD 北大核心 2010年第4期1106-1111,共6页 Acta Optica Sinica
基金 国家自然科学基金(10505028 10805071 10705020) 上海市基础重点基金(3107JC14062 08JC1411900) 国际理论物理中心(ICTP)意大利实验培训和研究项目(TRIL)资助课题
关键词 医用光学 X射线显微CT 相位恢复 Born近似 medical optics X-ray micro-CT phase retrieval Born approximations
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  • 1R. Fitzgerald. Phase-sensitive X-ray imaging[J]. Phys. Today, 2000, 53(7): 23-26.
  • 2A. Momose. Demonstration of Ppase contrast X-ray computed- tomography using an X-ray interferometer[J]. Nucl. Instrum. Meth. A, 1995, 352(3): 622-628.
  • 3F. A. Dilmanian, Z. Zhong, B. Ren et al.. Computed tomography of X-ray index of refraction using the diffraction enhanced imaging method[J]. Phys. Med. Biol, , 2000, 45(4): 933-946.
  • 4P. P. Zhu, J. Y. Wang, Q. X. Yuan et al.. Computed tomography algorithm based on diffraction enhanced imaging setup[J]. Appl. Phys. Lett. , 2005, 87(26): 264101.
  • 5孙怡,朱佩平,于健,陈欣.X射线衍射增强成像中吸收、折射以及散射衬度的计算层析[J].光学学报,2007,27(4):749-754. 被引量:16
  • 6F. Pfeiffer, C. Kottler, O. Bunk et al.. Hard X-ray phase tomography with low brilliance sources[J]. Phys. Rev. Lett. , 2007, 98(10): 108105.
  • 7陈欣,孙怡,朱佩平.光栅成像的锥束相位CT重建算法[J].光学学报,2008,28(6):1079-1084. 被引量:9
  • 8Z. F. Huang, K. J. Kang, L. Zhangetal.. Alternative method for differential phase-contrast imaging with weakly coherent hard X-rays[J]. Phys. Rev. A, 2009, 79(1):013815.
  • 9C. Raven, A. Snigirev, I. Snigireva et al.. Phase contrast microtomography with coherent high-energy synchrotron X-rays [J]. Appl. Phys. Lett. , 1996, 69(13): 1826--1828.
  • 10蒋诗平,李妹芳,陈阳,陈亮.同轴X射线相位衬度计算机X射线断层摄影术研究[J].光学学报,2008,28(3):609-612. 被引量:4

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