Snapshot fan beam coded aperture coherent scatter tomography
Snapshot fan beam coded aperture coherent scatter tomography
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DOI:
10.1364/oe.24.018289
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发表时间:
2016-08-08
期刊:
影响因子:
3.8
通讯作者:
Brady, David J.
中科院分区:
文献类型:
--
作者:
Hassan, Mehadi;Greenberg, Joel A.;Brady, David J.
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. (C) 2016 Optical Society of America