X-ray interior tensor tomography with 2D gratings

Mianyi Chen; Qingsong Yang; Wenxiang Cong; Biao Wei; Ge Wang

doi:10.1117/12.2238408

3 October 2016 X-ray interior tensor tomography with 2D gratings

Mianyi Chen, Qingsong Yang, Wenxiang Cong, Biao Wei, Ge Wang

Proceedings Volume 9967, Developments in X-Ray Tomography X; 99670Y (2016) https://doi.org/10.1117/12.2238408
Event: SPIE Optical Engineering + Applications, 2016, San Diego, California, United States

Abstract

X-ray tensor tomography is a promising imaging modality for probing the micro structure of a sample by reconstructing small-angle scattering densities in different scattering directions. However, the current x-ray grating technique still faces an obstacle when a divergent x-ray beam from a point x-ray source propagates through a large object and reaches large planar gratings. In this situation, tensor interior tomography is essential to perform the image reconstruction over a region of interest (ROI) in the object. Therefore, we propose interior tensor tomography with 2D gratings to extract dark field images isotropically. Our numerical results demonstrate that the proposed methods are promising for reconstruction of local images from truncated dark field projection data.

Conference Presentation

Citation Download Citation

Mianyi Chen, Qingsong Yang, Wenxiang Cong, Biao Wei, and Ge Wang "X-ray interior tensor tomography with 2D gratings", Proc. SPIE 9967, Developments in X-Ray Tomography X, 99670Y (3 October 2016); https://doi.org/10.1117/12.2238408

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