Wieczorek, M., Schaff, F., Pfeiffer, F. & Lasser, T. Anisotropic X-Ray Dark-Field Tomography: A Continuous Model and its Discretization. Phys. Rev. Lett. 117, 158101–5 (2016). [http://doi.org/10.1103/physrevlett.117.158101]
Purpose: We present a novel general closed-form, continuous forward model of the anisotropic dark-field signal.
Figure: Scattering function corresponding to voxel A, which contains one main structure orientation (see Fig. 2). Positive function values are colored blue, while negative ones are displayed in red. The upper row shows a front view; the bottom row shows a bottom view. From left to right: (a), (c) XTT tensor and (b), (d) AXDT reconstruction.