SWITCHABLE PHASE STEPPING
    5.
    发明公开

    公开(公告)号:EP3669783A1

    公开(公告)日:2020-06-24

    申请号:EP18215305.6

    申请日:2018-12-21

    摘要: Phase stepping for differential phase contrast and/or dark field x-ray imaging using a switchable grating in which particles in a reservoir are aligned into wall-like x-ray absorbing structures by inducing a standing wave in a medium in the reservoir. The standing wave is modified by a second ultrasound generator that modifies the standing wave such that the pressure nodes of the first standing wave shift position.