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  • Recent developments in fly scan methods for phase and multi-contrast x-ray micro-CT based on amplitude modulated beams [Elektronski vir]
    Lioliou, Grammatiki ...
    Beam tracking and edge illumination are phase contrast imaging techniques that rely on amplitude modulated x-ray beams to generate sensitivity to refraction and scattering. While each technique has ... its advantage (“single shot” three-contrast imaging in beam tracking; the ability to work with relatively large pixels in edge illumination), they also share a common drawback, namely that the modulator shields parts of the sample and, thus, prevents those areas from contributing to the image (under-sampling). Sample stepping, by which frames are acquired with the sample in a different position relative to the modulator (sometimes referred to as “dithering”) can produce well-sampled images. However, in computed tomography (CT), stepping must be performed at each rotation angle, enforcing step-and-shoot acquisitions and leading to long scan times. To enable faster acquisitions, fly scan compatible scanning schemes based on “roto-translating” the sample in the modulated x-ray beam were recently developed. This article reviews these schemes and provides practical guidance for their implementation.
    Vir: Tomography of materials and structures [Elektronsski vir]. - ISSN 2949-673X (Vol. 5, [article no.] 100034, Jun. 2024, str. 1-13)
    Vrsta gradiva - e-članek ; neleposlovje za odrasle
    Leto - 2024
    Jezik - angleški
    COBISS.SI-ID - 261037827

    Povezava(-e):

    https://www.sciencedirect.com/science/article/pii/S2949673X24000111

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