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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 52, Iss. 19 — Jul. 1, 2013
  • pp: 4582–4589

Snapshot 2D tomography via coded aperture x-ray scatter imaging

Kenneth P. MacCabe, Andrew D. Holmgren, Martin P. Tornai, and David J. Brady  »View Author Affiliations


Applied Optics, Vol. 52, Issue 19, pp. 4582-4589 (2013)
http://dx.doi.org/10.1364/AO.52.004582


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Abstract

This paper describes a fan beam coded aperture x-ray scatter imaging system that acquires a tomographic image from each snapshot. This technique exploits the cylindrical symmetry of the scattering cross section to avoid the scanning motion typically required by projection tomography. We use a coded aperture with a harmonic dependence to determine range and a shift code to determine cross range. Here we use a forward-scatter configuration to image 2D objects and use serial exposures to acquire tomographic video of motion within a plane. Our reconstruction algorithm also estimates the angular dependence of the scattered radiance, a step toward materials imaging and identification.

© 2013 Optical Society of America

OCIS Codes
(110.7440) Imaging systems : X-ray imaging
(340.7430) X-ray optics : X-ray coded apertures
(110.1758) Imaging systems : Computational imaging
(110.3200) Imaging systems : Inverse scattering

ToC Category:
X-ray Optics

History
Original Manuscript: February 11, 2013
Manuscript Accepted: April 5, 2013
Published: June 26, 2013

Virtual Issues
Vol. 8, Iss. 8 Virtual Journal for Biomedical Optics

Citation
Kenneth P. MacCabe, Andrew D. Holmgren, Martin P. Tornai, and David J. Brady, "Snapshot 2D tomography via coded aperture x-ray scatter imaging," Appl. Opt. 52, 4582-4589 (2013)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-52-19-4582


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