title: Diffraction tomography using beam waves: z-average reconstruction.
abstract: This paper discusses the problem of diffraction tomography, when a general beam wave is used as the excitation and the three-dimensional structure of the object is considered. The special case of a zero-order beam wave with measurements of the average of the scattered field in the z direction is detailed. It is shown that in this case a reconstruction algorithm identical to the two-dimensional geometry yields a z-averaged tomogram of the inhomogeneity.
mesh_terms: D005583:Fourier Analysis; D006801:Humans; D008433:Mathematics; D014054:Tomography / Q000379:methods*; D014463:Ultrasonography