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Updated: Apr 6, 2026

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Laboratory-based multi-modal X-ray microscopy and micro-CT with Bragg magnifiers.

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    This study demonstrates laboratory-based X-ray phase contrast microscopy and micro computed tomography (CT) using a Bragg magnifier microscope (BMM). The system achieves high-resolution imaging and multi-modal capabilities, making advanced X-ray techniques more accessible.

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    Area of Science:

    • Physics
    • Materials Science
    • Biomedical Imaging

    Background:

    • Advanced X-ray imaging techniques like phase contrast microscopy and micro computed tomography (CT) are typically limited to large synchrotron facilities.
    • Compact, high-resolution X-ray imaging systems are needed to broaden the accessibility of these powerful diagnostic tools.

    Purpose of the Study:

    • To demonstrate a laboratory setup for X-ray phase contrast microscopy and micro CT using a Bragg magnifier microscope (BMM).
    • To achieve high-resolution, multi-modal X-ray imaging and micro CT in a compact, non-synchrotron environment.

    Main Methods:

    • Utilized a Bragg magnifier microscope (BMM) composed of two channel-cut crystals in asymmetric diffraction for 15X X-ray beam magnification.
    • Employed analyzer-based phase contrast imaging by acquiring images at different angular positions to obtain parametric images (apparent absorption, differential phase, scattering).
    • Integrated micro CT capabilities with a resolution of approximately 5 μm into the same system.

    Main Results:

    • Successfully demonstrated X-ray phase contrast microscopy and micro CT in a laboratory setup.
    • Achieved high-resolution imaging with parametric contrast generation (absorption, differential phase, scattering).
    • Obtained micro CT images with a resolution of about 5 μm using the BMM system.

    Conclusions:

    • The developed BMM system successfully extends high-resolution, multi-modal X-ray imaging and micro CT to compact laboratory setups.
    • This advancement has the potential to significantly broaden the accessibility and application of these techniques beyond synchrotron user communities.
    • Further research can focus on mitigating identified limitations to further enhance system performance and applicability.