CNCS Center for Nonlinear and Complex Systems
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Publications [#280239] of David J. Brady

Papers Published

  1. Greenberg, JA; Hassan, M; Krishnamurthy, K; Brady, D, Structured illumination for tomographic X-ray diffraction imaging., The Analyst, vol. 139 no. 4 (February, 2014), pp. 709-713, ISSN 0003-2654 [doi]
    (last updated on 2019/11/22)

    Tomographic imaging of the molecular structure of an object is important for a variety of applications, ranging from medical and industrial radiography to security screening. X-ray diffraction imaging is the preeminent technique for performing molecular analysis of large volumes. Here we propose and demonstrate a new measurement architecture to improve the source and detector efficiency for diffraction imaging. In comparison with previous techniques, our approach reduces the required overall scan time by 1-2 orders of magnitude, which makes possible real-time scanning of a broad range of materials over a large volume using a table-top setup. This method, which relies on structuring spatially the illumination incident on an object moving relative to the X-ray source, is compatible with existing systems and has the potential to significantly enhance performance in an array of areas, such as medical diagnostic imaging and explosives detection.