10 September 2005 Phase contrast micro-CT with an ultrafast laser-based x-ray source
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We investigated performance of ultrafast laser-based x-ray source for phase contrast imaging in 2D projection imaging and in enhanced micro-CT imaging. Good quality images were obtained, including images of small animals, in the single energy and multiple energy, in line phase-contrast enhancing geometry using x-ray line energy matching object thickness and density. Phase information has been inferred from images obtained at the same x-ray energy but at different object-to-detector distances and also from images obtained at the same object-to-detector distance but with different K-alpha line energies. Ultrafast laser-based, compact, x-ray source is a promising technique for micro-CT systems. Its utilization might result in faster scans with lower radiation dose, better spatial and contrast resolution and also femtosecond temporal resolution. In addition, it might allow practical implementation of dual-energy and phase-contrast imaging micro-CT that is not possible with conventional micro-CT.
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R. Toth, J. C. Kieffer, A. Krol, S. Fourmaux, T. Ozaki, H. Ye, R. E Kincaid, A. Rakhman, "Phase contrast micro-CT with an ultrafast laser-based x-ray source", Proc. SPIE 5918, Laser-Generated, Synchrotron, and Other Laboratory X-Ray and EUV Sources, Optics, and Applications II, 591813 (10 September 2005); doi: 10.1117/12.617710; https://doi.org/10.1117/12.617710


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