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    Area of Science:

    • Optics
    • X-ray imaging
    • Coherence theory

    Background:

    • Characterizing X-ray beams and samples is crucial for advanced imaging.
    • Partial coherence in illuminating beams complicates sample analysis.
    • Current methods often require multiple measurements or specific models.

    Purpose of the Study:

    • To develop a single-measurement approach for simultaneous sample and X-ray beam characterization.
    • To overcome limitations imposed by partial coherence in X-ray imaging.
    • To enable high-quality recovery of sample transmission functions and beam coherence properties.

    Main Methods:

    • Utilizing a modal approach based on coherence diffractive imaging.
    • Implementing a single-shot measurement technique.
    • Developing algorithms to separate sample and beam coherence effects.

    Main Results:

    • Successfully demonstrated simultaneous recovery of sample transmission function and X-ray beam coherence.
    • The method is independent of specific coherence function models.
    • Achieved high-quality sample information recovery despite partial beam coherence.

    Conclusions:

    • The modal approach offers an efficient and robust method for X-ray imaging.
    • This technique advances the field of coherence diffractive imaging.
    • Enables more accurate and detailed analysis of both samples and illumination sources.