期刊
出版社
ELSEVIER
DOI: 10.1016/j.nima.2017.07.036
关键词
X-ray; Phase-contrast; Imaging
类别
资金
- Royal Academy of Engineering under the RAEng Research Fellowships scheme
X-ray imaging is a standard tool for the non-destructive inspection of the internal structure of samples. It finds application in a vast diversity of fields: medicine, biology, many engineering disciplines, palaeontology and earth sciences are just few examples. The fundamental principle underpinning the image formation have remained the same for over a century: the X-rays traversing the sample are subjected to different amount of absorption in different parts of the sample. By means of phase-sensitive techniques it is possible to generate contrast also in relation to the phase shifts imparted by the sample and to extend the capabilities of X-ray imaging to those details that lack enough absorption contrast to be visualised in conventional radiography. A general overview of X-ray phase contrast imaging techniques is presented in this review, along with more recent advances in this fast evolving field and some examples of applications. (C) 2017 Elsevier B.V. All rights reserved.
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