Impact of detector geometry for compressive fan beam snapshot coherent scatter imaging

Mehadi Hassan; Andrew Holmgren; Joel A. Greenberg; Ikenna Odinaka; David Brady

doi:10.1117/12.2224797

12 May 2016 Impact of detector geometry for compressive fan beam snapshot coherent scatter imaging

Mehadi Hassan, Andrew Holmgren, Joel A. Greenberg, Ikenna Odinaka, David Brady

Proceedings Volume 9847, Anomaly Detection and Imaging with X-Rays (ADIX); 98470X (2016) https://doi.org/10.1117/12.2224797
Event: SPIE Defense + Security, 2016, Baltimore, MD, United States

Abstract

Previous realizations of coded-aperture X-ray diffraction tomography (XRDT) techniques based on pencil beams image one line through an object via a single measurement but require raster scanning the object in multiple dimensions. Fan beam approaches are able to image the spatial extent of the object while retaining the ability to do material identification. Building on these approaches we present our system concept and geometry of combining a fan beam with energy sensitive/photon counting detectors and a coded aperture to capture both spatial and spectral information about an object at each voxel. Using our system we image slices via snapshot measurements for four different detector configurations and compare their results.

Citation Download Citation

Mehadi Hassan, Andrew Holmgren, Joel A. Greenberg, Ikenna Odinaka, and David Brady "Impact of detector geometry for compressive fan beam snapshot coherent scatter imaging", Proc. SPIE 9847, Anomaly Detection and Imaging with X-Rays (ADIX), 98470X (12 May 2016); https://doi.org/10.1117/12.2224797

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