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Refraction-angle resolution of diffraction enhanced imaging.

Zhi-Feng Huang·Ke-Jun Kang·Zheng Li
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Abstract

As a new method, x-ray diffraction enhanced imaging (DEI) has extremely high sensitivity for weakly absorbing low-Z samples in medical and biological fields. Conventional performance parameters, such as spatial resolution and low-contrast resolution, are not enough to describe the characteristics of a DEI system. This paper focuses on refraction-angle resolution which describes the ability of a DEI system to differentiate the x-rays refracted by the sample. The analysis of refraction-angle resolution is composed of two parts: the analysis of the single DEI image measured in a certain position of the rocking curve and the analysis of the refraction-angle image calculated by extraction methods. A 2D computer simulation experiment is performed to prove the results of the analyses. The limitations and conclusions of refraction-angle resolution are described in the end.

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AlgorithmsComputer SimulationImage EnhancementImage Interpretation, Computer-AssistedInformation Storage and RetrievalModels, BiologicalRefractometryReproducibility of ResultsSensitivity and SpecificityX-Ray DiffractionEvaluation StudyJournal ArticleResearch Support, Non-U.S. Gov't

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Zhi-Feng Huang, Ke-Jun Kang, Zheng Li. 2006-05-31. Refraction-angle resolution of diffraction enhanced imaging.. https://doi.org/10.1088/0031-9155%2F51%2F12%2F002

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