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German physicist Wilhelm Röntgen (1845–1923) was experimenting with electrical current when he discovered that a mysterious and invisible "ray" would pass through his flesh but leave an outline of his bones on a screen coated with a metal compound. In 1895, Röntgen made the first durable record of the internal parts of a living human: an "X-ray" image (as it came to be called) of his wife’s hand. Scientists worldwide quickly began their own experiments with...
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The size of the unit cell and the arrangement of atoms in a crystal may be determined from measurements of the diffraction of X-rays by the crystal, termed X-ray crystallography.
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    Area of Science:

    • Medical imaging
    • Computational imaging
    • Applied mathematics

    Background:

    • Scatter imaging offers a promising approach for tomographic reconstruction from limited measurements.
    • Current methods face challenges in achieving high-resolution imaging from snapshot data.

    Purpose of the Study:

    • To investigate and present novel coded aperture designs for scatter imaging systems.
    • To compare the performance of these designs against existing tomographic techniques.

    Main Methods:

    • Development of coded aperture designs tailored for pencil and fan beam geometries.
    • Analysis of singular value spectra to evaluate image reconstruction conditioning.
    • Comparison with Radon transform and selected volume tomography methods.

    Main Results:

    • Scatter imaging with specifically designed coded apertures demonstrates improved conditioning under dose constraints.
    • The proposed coded apertures facilitate snapshot 1D and 2D tomography.
    • Performance comparison highlights advantages over alternative tomographic techniques.

    Conclusions:

    • Specially designed coded apertures are effective for scatter imaging.
    • This approach enables efficient snapshot tomography, particularly in scenarios with dose limitations.