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Peiffer, C; Brombal, L; Maughan Jones, C J; Arfelli, F; Astolfo, A; Dreossi, D; Endrizzi, M; Hagen, C K; Mazzolani, A; Menk, R; Rigon, L; Olivo, A; Munro, P R T
Journal of physics. D, Applied physics, 11/2023, Letnik: 56, Številka: 45Journal Article
Abstract X-ray phase contrast imaging (XPCI) methods give access to contrast mechanisms that are based on the refractive properties of matter on top of the absorption coefficient in conventional x-ray imaging. Ultra small angle x-ray scattering (USAXS) is a phase contrast mechanism that arises due to multiple refraction events caused by physical features of a scale below the physical resolution of the used imaging system. USAXS contrast can therefore give insight into subresolution structural information, which is an ongoing research topic in the vast field of different XPCI techniques. In this study, we quantitatively compare the USAXS signal retrieved by the beam tracking XPCI technique with the gold standard of the analyzer based imaging XPCI technique using a synchrotron x-ray source. We find that, provided certain conditions are met, the two methods measure the same quantity.
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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