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Quantitative evaluation methods of in-line x-ray phase contrast techniques
Journal article   Peer reviewed

Quantitative evaluation methods of in-line x-ray phase contrast techniques

C. Li, Z. Li, C-Q Li and A-M Yu
Chinese Physics Letters, Vol.24(10), pp.2823-2826
2007
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Abstract

By revealing the relationship between edge visibility and imaging parameters in in-line phase contrast imaging (PCI), we propose a method to quantitatively measure the contribution of absorption and phase shift from acquired images. We also prove that edge visibility will grow with the increasing source-object distance and object-detector distance. The result is validated by relative phase factor and by experiments conducted on a microfocus x-ray source. This method provides a new approach to evaluate in-line PCI images and is helpful for deciding imaging parameters.

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