Snapshot fan beam coded aperture coherent scatter tomography.


Journal Article

We use coherently scattered X-rays to measure the molecular composition of an object throughout its volume. We image a planar slice of the object in a single snapshot by illuminating it with a fan beam and placing a coded aperture between the object and the detectors. We characterize the system and demonstrate a resolution of 13 mm in range and 2 mm in cross-range and a fractional momentum transfer resolution of 15%. In addition, we show that this technique allows a 100x speedup compared to previously-studied pencil beam systems using the same components. Finally, by scanning an object through the beam, we image the full 4-dimensional data cube (3 spatial and 1 material dimension) for complete volumetric molecular imaging.

Full Text

Duke Authors

Cited Authors

  • Hassan, M; Greenberg, JA; Odinaka, I; Brady, DJ

Published Date

  • August 2016

Published In

Volume / Issue

  • 24 / 16

Start / End Page

  • 18277 - 18289

PubMed ID

  • 27505791

Pubmed Central ID

  • 27505791

Electronic International Standard Serial Number (EISSN)

  • 1094-4087

International Standard Serial Number (ISSN)

  • 1094-4087

Digital Object Identifier (DOI)

  • 10.1364/oe.24.018277


  • eng