Results 41 to 50 of about 318,010 (213)

Quantitative phase contrast and X-ray scattering micro-tomography with the 9.2 keV liquid metal jet anode

, 2022
Art. 1039109, 10 S.Grating-based X-ray phase contrast and scattering contrast tomography were pioneered at synchrotron beamlines and are well established as laboratory applications.
Balles, A., Fella, C., Zabler, S., Hanke, R., Dittmann, J.   +4 more
core   +1 more source

Multi-Mounted X-Ray Computed Tomography. [PDF]

PLoS ONE, 2016
Most existing X-ray computed tomography (CT) techniques work in single-mounted mode and need to scan the inspected objects one by one. It is time-consuming and not acceptable for the inspection in a large scale.
Jian Fu, Zhenzhong Liu, Jingzheng Wang
doaj   +1 more source

Algorithms for joint activity–attenuation estimation from positron emission tomography scatter

EJNMMI Physics, 2019
Background Attenuation correction in positron emission tomography remains challenging in the absence of measured transmission data. Scattered emission data may contribute missing information, but quantitative scatter-to-attenuation (S2A) reconstruction ...
Yannick Berker, Volkmar Schulz, Joel S. Karp   +2 more
doaj   +1 more source

Improving dynamic tomography, through maximum a posteriori estimation [PDF]

, 2014
Direct study of pore-scale fluid displacements, and other dynamic (i.e. time-dependent) processes is not feasible with conventional X-ray micro computed tomography (μCT).
Sheppard, Adrian, Matthew Geleta, Adrian P. Sheppard, Myers, Glenn R., Benoit Recur, Glenn R. Myers, Kingston, Andrew M., Recur, Benoit, Geleta, Matthew, Andrew M. Kingston   +9 more
core   +1 more source

X-ray Micro-CT based characterization of rock cuttings with deep learning

Applied Computing and Geosciences
Rock cuttings from destructive boreholes are a common and cheaper source of drilling materials that can be used to determine underground geology compared to rock core samples.
Nils Olsen, Yifeng Chen, Pascal Turberg, Alexandre Moreau, Alexandre Alahi   +4 more
doaj   +1 more source

Micro- and nanostructure of human teeth : a synchrotron radiation-based X-ray study [PDF]

, 2014
The anisotropic composite nature of human teeth guarantees their function for decades under high mechanical loads and adverse chemical conditions. Even more so since only marginal remodelling and repair mechanisms take place in adult teeth.
Deyhle, Hans
core   +1 more source

Limited early-industrial warming and strong volcanic imprints in the Caucasus: the first temperature reconstruction based on maximum latewood density [PDF]

Climate of the Past
The Caucasus occupies a unique climatic region influenced by European, Mediterranean, and Asian circulation systems, yet it remains underrepresented in tree ring-based Northern Hemisphere temperature proxy networks.
R. Dhyani, D. Martin-Benito, L. Verschuren, L. Verschuren, V. Matskovsky, V. Matskovsky, J. Van den Bulcke, J. Van den Bulcke, M. Doğan, R. Kvaratskhelia, N. Köse, H. T. Güner, L. Schneider, L. Schneider   +13 more
doaj   +1 more source

High-speed X-ray ptychographic tomography

Scientific Reports, 2022
X-ray ptychography is a coherent scanning imaging technique widely used at synchrotron facilities for producing quantitative phase images beyond the resolution limit of conventional x-ray optics.
Darren Batey, Christoph Rau, Silvia Cipiccia   +2 more
doaj   +1 more source

Strategies for efficient scanning and reconstruction methods on very large objects with high-energy x-ray computed tomography

, 2022
Art. 921209, 9 S.X-ray computed tomography (CT) is an established tool for industrial non-destructive testing purposes. Yet conventional CT devices pose limitations regarding specimen dimensions and material thicknesses.
Boehnel, Michael, Reims, Nils, Sukowski, Frank, Firsching, Markus, Schoen, Tobias   +4 more
core   +1 more source

Registration and tracking to integrate X-ray and MR images in an XMR facility

, 2003
We describe a registration and tracking technique to integrate cardiac X-ray images and cardiac magnetic resonance (MR) images acquired from a combined X-ray and MR interventional suite (XMR).
Rueckert, D, Hipwell, J, Hegde, S, Hill, D L G, Hill, DL, Razavi, R; id_orcid, Edwards, PJ, Sanchez-Ortiz, G, Rhode, KS, Sanchez Ortiz, G, Edwards, P J, Rhode, K S; id_orcid, Rahunathan, V, Razavi, R   +13 more
core   +1 more source