Zobrazeno 1 - 10
of 145
pro vyhledávání: '"Gureyev, Timur E."'
Autor:
Arhatari, Benedicta D., Paganin, David M., Kirkwood, Henry, Tremsin, Anton S., Gureyev, Timur E., Korsunsky, Alexander M., Kockelmann, Winfried, Hofmann, Felix, Huwald, Eric, Zhang, Shu-Yan, Kelleher, Joe, Abbey, Brian
Publikováno v:
Physical Review A 109, 053529 (2024)
Micro-channel plate (MCP) detectors, when used at pulsed-neutron-source instruments, offer the possibility of high spatial resolution and high contrast imaging with pixel-level spectroscopic information. Here we demonstrate the possibility of multimo
Externí odkaz:
http://arxiv.org/abs/2311.16159
A unified method for three-dimensional reconstruction of objects from transmission images collected at multiple illumination directions is described. The method may be applicable to experimental conditions relevant to absorption-based, phase-contrast
Externí odkaz:
http://arxiv.org/abs/2206.09151
A new method is developed for three-dimensional (3D) reconstruction of multi-material objects using propagation-based X-ray phase-contrast tomography (PB-CT) with phase retrieval via the contrast transfer function (CTF) formalism. The approach differ
Externí odkaz:
http://arxiv.org/abs/2206.02688
Autor:
Gureyev, Timur E.1,2 (AUTHOR) timur.gureyev@unimelb.edu.au, Paganin, David M.2 (AUTHOR), Quiney, Harry M.1 (AUTHOR) quiney@unimelb.edu.au
Publikováno v:
Journal of Synchrotron Radiation. Jul2024, Vol. 31 Issue 4, p896-909. 14p.
Autor:
Alloo, Samantha J., Paganin, David M., Morgan, Kaye S., Gureyev, Timur E., Mayo, Sherry C., Mohammadi, Sara, Lockie, Darren, Menk, Ralf Hendrik, Arfelli, Fulvia, Zanconati, Fabrizio, Tromba, Giuliana, Pavlov, Konstantin M.
Publikováno v:
Optics Letters 47, 1945-1948 (2022)
Propagation-based phase-contrast X-ray imaging (PB-PCXI) generates image contrast by utilizing sample-imposed phase-shifts. This has proven useful when imaging weakly-attenuating samples, as conventional attenuation-based imaging does not always prov
Externí odkaz:
http://arxiv.org/abs/2110.06284
Imaging is an important means by which information is gathered regarding the physical world. Spatial resolution and signal-to-noise ratio are underpinning concepts. There is a paucity of rigorous definitions for these quantities, which are general en
Externí odkaz:
http://arxiv.org/abs/1909.11797
Autor:
Gureyev, Timur E., Kozlov, Alexander, Nesterets, Yakov I., Paganin, David M., Quiney, Harry M.
It is proved that the width of a function and the width of the distribution of its values cannot be made arbitrarily small simultaneously. In the case of ergodic stochastic processes, an ensuing uncertainty relationship is demonstrated for the produc
Externí odkaz:
http://arxiv.org/abs/1811.12592
Akademický článek
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Akademický článek
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Autor:
Gureyev, Timur E., Kozlov, Alexander, Paganin, David M., Nesterets, Yakov I., De Hoog, Frank, Quiney, Harry M.
Publikováno v:
J. Opt. Soc. Am. A, Vol. 34, pp. 1577-1584 (2017)
A reciprocal relationship between the autocovariance of the light intensity in the source plane and in the far-field detector plane is presented in a form analogous to the classical van Cittert - Zernike theorem, but involving intensity correlation f
Externí odkaz:
http://arxiv.org/abs/1706.02824