Development of the 1-D X-ray beam diffuser for multilayer monochromator and its application to X-ray phase tomography

The one-dimensional (1-D) X-ray beam diffuser was developed to reduce horizontal stripe-shaped intensity irregularities on the beam from a multilayer monochromator while keeping the horizontal spatial coherence of the beam required for phase measurements using a grating interferometer. The diffused...

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Bibliographic Details
Published in:Applied physics express 2024-11, Vol.17 (11), p.116502
Main Authors: Hoshino, Masato, Uesugi, Kentaro
Format: Article
Language:English
Subjects:
multilayer monochromator
Synchrotron radiation
X-ray beam diffuser
X-ray beam smoother
X-ray phase tomography
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Summary:The one-dimensional (1-D) X-ray beam diffuser was developed to reduce horizontal stripe-shaped intensity irregularities on the beam from a multilayer monochromator while keeping the horizontal spatial coherence of the beam required for phase measurements using a grating interferometer. The diffused beam showed a smoothed beam profile without degrading the visibility of Moiré fringes in the grating interferometer. In the X-ray phase tomographic measurement, a sectional image with the beam diffuser showed clear structure without artifacts while the sectional image without the diffuser suffered from the remaining striped-shaped artifacts.
ISSN:1882-0778
1882-0786
DOI:10.35848/1882-0786/ad8fee