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Structured illumination for tomographic X-ray diffraction imaging

delete2014-01-01
delete29
PRE
AI
J
Joel A. Greenberg
M
Mehadi Hassan
K
Kalyani Krishnamurthy
D
David J. Brady *
DOI:10.1039/c3an01641bdelete
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Abstract

Abstract

En 中文
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 performingmolecular 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, whichmakes 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.

Journal

A
Analyst
IF:
3.3
Papers:
1.6W
Citations:
3.3W

Organization

D
Duke University
Scholars:
6.3W
Papers: 5.7W
Citations: 6.5W