Abstract
In recent years, efforts have been made on the information extraction method in x-ray grating-based phase contrast imaging. Among them, the reverse projection method proposed by P.P. Zhu in 2010 features as a fast, low-dose method to extract information without stepping the gratings. It enables to extend the phase contrast imaging system to the vivo studies. However, it has strict requirement on the system stability and the source stability. In this manuscript, an improved acquisition scheme has been proposed using a staggered grating making the reverse projection method more efficient with a lower requirement of the system and source stability.
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