Results 11 to 20 of about 318,010 (213)

Principles of X-ray Computed Tomography

open access: yes, 2017
In this chapter, the physical and mathematical principles of X-ray computed tomography are summarised. First, the fundamentals of X-ray physics are covered, with details on generation, propagation and attenuation of X-rays, including a brief introduction to phase-contrast and dark-field imaging.
Hermanek, Petr   +3 more
core   +4 more sources

X-ray tomography for manuscripts

open access: yesUmanistica Digitale, 2022
This review presents the studies and the results achieved in the framework of the “Virtual X-ray Reading – VXR” project devoted to X-ray tomography for manuscripts.
Fauzia Albertin
doaj   +2 more sources

Line-Source Based X-Ray Tomography [PDF]

open access: yesInternational Journal of Biomedical Imaging, 2009
Current computed tomography (CT) scanners, including micro-CT scanners, utilize a point x-ray source. As we target higher and higher spatial resolutions, the reduced x-ray focal spot size limits the temporal and contrast resolutions achievable.
Deepak Bharkhada   +4 more
doaj   +4 more sources

Stereo X-Ray Tomography [PDF]

open access: yesIEEE Transactions on Nuclear Science, 2023
X-ray tomography is a powerful volumetric imaging technique, but detailed three dimensional (3D) imaging requires the acquisition of a large number of individual X-ray images, which is time consuming. For applications where spatial information needs to be collected quickly, for example, when studying dynamic processes, standard X-ray tomography is ...
Zhenduo Shang, Thomas Blumensath
openaire   +3 more sources

Quantitative X-ray tomography [PDF]

open access: yesInternational Materials Reviews, 2014
X-ray computer tomography (CT) is fast becoming an accepted tool within the materials science community for the acquisition of 3D images. Here the authors review the current state of the art as CT transforms from a qualitative diagnostic tool to a quantitative one. Our review considers first the image acquisition process, including the use of iterative
Maire, E   +1 more
openaire   +1 more source

X-ray micro computed-tomography [PDF]

open access: yesCurrent Biology, 2017
Emily Baird and Gavin Taylor describe how you can make three-dimensional models of biological samples using x-ray micro-computed tomography.
Emily, Baird, Gavin, Taylor
openaire   +2 more sources

X-ray computed tomography of the heart [PDF]

open access: yesBritish Medical Bulletin, 2009
Cardiac imaging is an emerging application of multidetector computed tomography (MDCT). This review summarizes the current capabilities, possible applications, limitations and developments of cardiac CT.Relevant publications in peer reviewed literature and national and international guidelines are used to discuss important issues in cardiac CT imaging ...
Nevin T, Wijesekera   +2 more
openaire   +2 more sources

X-ray phase-contrast computed tomography for full-breast mastectomy imaging at the Australian Synchrotron

open access: yes, 2021
One of the imaging modalities offered by the Imaging and Medical Beamline (IMBL) at the Australian Synchrotron is Xray phase-contrast propagation-based computed tomography (PB-CT). The unique combination of high coherence and high brightness of radiation
Stevenson, Andrew W.   +13 more
core   +1 more source

Tunable X-ray dark-field imaging for sub-resolution feature size quantification in porous media

open access: yesScientific Reports, 2021
X-ray computed micro-tomography typically involves a trade-off between sample size and resolution, complicating the study at a micrometer scale of representative volumes of materials with broad feature size distributions (e.g. natural stones). X-ray dark-
Benjamin K. Blykers   +8 more
doaj   +1 more source

Time Resolved Two Dimensional X-Ray Densitometry of a Two Phase Flow Downstream of a Ventilated Cavity [PDF]

open access: yes, 2013
To measure the void fraction distribution in gas-liquid flows, a two-dimensional x-ray densitometry system was developed. This system is capable of acquiring a two-dimensional projection with a 225 cm2 area of measurement through 21 cm of water.
GABILLET, Céline   +8 more
core   +1 more source

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