X-ray phase-contrast imaging has experienced rapid development over the lastfew decades, and in this technology, the phase modulation strategy ofphase-stepping is used most widely to measure the sample's phase signal.However, because of its discontinuous nature, phase-stepping has the defects ofworse mechanical stability and high exposure dose, which greatly hinder itswide application in dynamic phase measurement and potential clinicalapplications. In this manuscript, we demonstrate preliminary research on theuse of integrating-bucket phase modulation method to retrieve the phaseinformation in grating-based X-ray phase-contrast imaging. Experimental resultsshowed that our proposed method can be well employed to extract thedifferential phase-contrast image, compared with the current mostly usedphase-stepping strategy, advantage of integrating-bucket phase modulationtechnique is that fast measurement and low dose are promising.
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