Results 1 to 10 of about 121,206 (189)

Calibrated X-ray micro-tomography for mineral ore quantification [PDF]

Minerals Engineering, 2017
Scanning Electron Microscopy (SEM) based assessments are the most widely used and trusted imaging technique for mineral ore quantification. X-ray micro tomography (XMT) is a more recent addition to the mineralogy toolbox, but with the potential to extend the measurement capabilities into the three dimensional (3D) assessment of properties such as ...
Reyes, F, Lin, Q, Udoudo, O, Dodds, C, Lee, PD, Neethling, S   +5 more
openaire   +11 more sources

Four-dimensional X-ray micro-tomography imaging of dynamic processes in geosciences

Comptes Rendus. Géoscience, 2022
The dynamic response of rocks to thermal, hydrodynamical, mechanical, and geochemical solicitations is of fundamental interest in several disciplines of geosciences, including geo-engineering, geophysics, rock physics, hydrology, mineralogy, and ...
Noiriel, Catherine, Renard, François
doaj   +3 more sources

X-Ray micro-tomography unveils the internal features of volcanic ash aggregates [PDF]

Communications Earth & Environment
Volcanic ash aggregation occurs during transport in the atmosphere when individual ash particles collide and stick together. It significantly impacts ash residence time in the atmosphere, with major consequences for hazard assessment and ash dispersal ...
Pietro Gabellini, Eduardo Rossi, Raffaello Cioni, Marco Pistolesi, Lukas P. Baumgartner, Costanza Bonadonna   +5 more
doaj   +2 more sources

Fixture-abutment connection surface and micro-gap measurements by 3D micro-tomographic technique analysis [PDF]

Annali dell'Istituto Superiore di Sanità, 2012
X-ray micro-tomography (micro-CT) is a miniaturized form of conventional computed axial tomography (CAT) able to investigate small radio-opaque objects at a-few-microns high resolution, in a nondestructive, non-invasive, and tri-dimensional way. Compared
Deborah Meleo, Luigi Baggi, Michele Di Girolamo, Fabio Di Carlo, Raffaella Pecci, Rossella Bedini   +5 more
doaj   +4 more sources

Imaging of metastatic lymph nodes by X-ray phase-contrast micro-tomography. [PDF]

PLoS ONE, 2013
Invasive cancer causes a change in density in the affected tissue, which can be visualized by x-ray phase-contrast tomography. However, the diagnostic value of this method has so far not been investigated in detail.
Torben Haugaard Jensen, Martin Bech, Tina Binderup, Arvid Böttiger, Christian David, Timm Weitkamp, Irene Zanette, Elena Reznikova, Jürgen Mohr, Fritz Rank, Robert Feidenhans'l, Andreas Kjær, Liselotte Højgaard, Franz Pfeiffer   +13 more
doaj   +8 more sources

Characterizing analogue caldera collapse with computerized X-ray micro-tomography [PDF]

, 2013
Analogue models in the past mainly explored caldera collapse structures by documenting 2D model cross-sections. Kinematic aspects and 3D structures of caldera collapse are less well understood, although they are essential to interpret recent field and monitoring data.
Poppe, Sam, Holohan, Eoghan, Boone, Matthieu, Pauwels, Elin, Cnudde, Veerle, Kervyn, Matthieu   +5 more
openaire   +4 more sources

Optically‐Coupled X‐Ray Computed Laminography System for High‐Speed Inspection of Lithium‐Ion Batteries [PDF]

Advanced Science
Conventional X‐ray computed tomography systems for microstructure inspection typically employ a geometrically magnified imaging setup, requiring a micro‐focus X‐ray source to mitigate image blurring caused by a finite focal spot size. However, due to its
Jaeyoung Im, Jun Heo, Seunguk Cheon, Jichan Kim, Sung Oh Cho   +4 more
doaj   +2 more sources

Spectral X‐ray computed micro tomography: 3‐dimensional chemical imaging [PDF]

X-Ray Spectrometry, 2020
Abstract We present a new approach to 3‐dimensional chemical imaging based on X‐ray computed micro tomography (CT), which enables the analysis of the internal elemental chemistry. The method uses a conventional laboratory‐based CT scanner equipped with a semiconductor detector (CdTe). Based on the X‐ray absorption spectra, elements in
Sittner, J., Da Assuncao Godinho, J. R., Renno, A., Cnudde, V., Boone, M., Schryver, T., Loo, D., Merkulova, M., Roine, A., Liipo, J.   +9 more
openaire   +3 more sources

Characterization of Ancient Marquetry Using Different Non-Destructive Testing Techniques

Applied Sciences, 2021
Non-destructive testing of objects and structures is a valuable tool, especially in cultural heritage where the preservation of the inspected sample is of vital importance.
Henrique Fernandes, Jannik Summa, Julie Daudre, Ute Rabe, Jonas Fell, Stefano Sfarra, Gianfranco Gargiulo, Hans-Georg Herrmann   +7 more
doaj   +1 more source

High-energy X-ray micro-laminography to visualize microstructures in dense planar objects

Journal of Synchrotron Radiation, 2023
High-energy X-ray micro-laminography has been developed to observe inner- and near-surface structures in dense planar objects that are not suitable for observation by X-ray micro-tomography. A multilayer-monochromator-based high-intensity X-ray beam with
Masato Hoshino, Kentaro Uesugi, Takuya Imai   +2 more
doaj   +1 more source