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Low-angle synchrotron radiation diffraction with glass-capillary optics.

P Engström, C Riekel

    Journal of Synchrotron Radiation
    |May 1, 1996
    PubMed
    Summary

    Borosilicate-glass-capillary optics effectively minimized scattering for X-ray diffraction using an undulator beam. This enabled observation of scattering from single crystallites in a silver behenate powder sample.

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    Area of Science:

    • Materials Science
    • Optics
    • Crystallography

    Background:

    • Low scattering is crucial for high-resolution X-ray diffraction.
    • Borosilicate-glass-capillary optics offer potential for enhanced beam control.

    Purpose of the Study:

    • To investigate the performance of borosilicate-glass-capillary optics for low-scattering X-ray applications.
    • To determine the resolution limits for observing crystallite scattering.

    Main Methods:

    • Utilized an undulator beam at the European Synchrotron Radiation Facility (ESRF).
    • Employed a 2.3 µm beam at a 0.092 nm wavelength.
    • Performed two-dimensional scanning of a silver behenate powder sample with a 2 µm step width.

    Main Results:

    • Observed scattering from single crystallites with a d(001) spacing of 5.83 nm.
    • Achieved a low-angle observation limit of approximately s ≈ 0.1 nm⁻¹ (corresponding to d ≈ 10 nm).

    Conclusions:

    • Borosilicate-glass-capillary optics are suitable for low-scattering X-ray experiments.
    • Demonstrated the capability to resolve scattering from individual crystallites at nanometer length scales.

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