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Abstract
Based on the transport-of-intensity equation and the Fourier transform, a rapid phase retrieval algorithm for X-ray phase contrast imaging is described in detail. This algorithm is a non-iterative phase retrieval method, and it has a potential speed for large scale X-ray phase contrast images. Then the numerical simulation is made to evaluate the rapid phase retrieval algorithm performance. Finally, a real fiber material experiment is carried out using a micro focus X-ray phase contrast imaging experiment platform, and the phase distribution image is calculated out by this algorithm. The result shows that this phase retrieval algorithm is effective and optional to practical application.
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