Results 1 to 10 of about 259,814 (304)

X-ray computed tomography [PDF]

Nature Reviews Methods Primers, 2021
X-ray computed tomography (CT) can reveal the internal details of objects in three dimensions non-destructively. In this Primer, we outline the basic principles of CT and describe the ways in which a CT scan can be acquired using X-ray tubes and synchrotron sources, including the different possible contrast modes that can be exploited.
Philip J Withers, Charles A Bouman, Simone Carmignato   +2 more
exaly   +7 more sources

High-energy synchrotron X-ray multimodal computed tomography: enabling multiscale materials characterization at NSLS-II [PDF]

Journal of Synchrotron Radiation
We report the commissioning of a multimodal computed tomography experimental setup at the 28-ID-2 (XPD) beamline of the National Synchrotron Light Source II.
Mehmet Topsakal, Daniel O'Nolan, Michael Drakopoulos, Jianming Bai, Eric Dooryhee, Simerjeet K. Gill, Sanjit Ghose   +6 more
doaj   +2 more sources

Segmentation of pores in carbon fiber reinforced polymers using the U-Net convolutional neural network

Acta Polytechnica CTU Proceedings, 2023
This study demonstrates the utilization of deep learning techniques for binary semantic segmentation of pores in carbon fiber reinforced polymers (CFRP) using X-ray computed tomography (XCT) datasets.
Miroslav Yosifov, Patrick Weinberger, Bernhard Plank, Bernhard Fröhler, Markus Hoeglinger, Johann Kastner, Christoph Heinzl   +6 more
doaj   +1 more source

Human Occupation of the North American Colorado Plateau ∼37,000 Years Ago

Frontiers in Ecology and Evolution, 2022
Calibrating human population dispersals across Earth’s surface is fundamental to assessing rates and timing of anthropogenic impacts and distinguishing ecological phenomena influenced by humans from those that were not.
Timothy B. Rowe, Timothy B. Rowe, Thomas W. Stafford, Daniel C. Fisher, Jan J. Enghild, J. Michael Quigg, Richard A. Ketcham, J. Chris Sagebiel, Romy Hanna, Matthew W. Colbert   +9 more
doaj   +1 more source

Reexamination of the mandibular and dental morphology of the Early Jurassic mammaliaform Hadrocodium wui [PDF]

Acta Palaeontologica Polonica, 2022
CT visualization of the mandible and dentition of Hadrocodium wui, a stem mammaliaform from the Lower Jurassic Lower Lufeng Formation of Yunnan, China has revealed new features not accessible by previous microscopic study of the fossil.
ZHE-XI LUO , BHART-ANJAN S. BHULLAR, ALFRED W. CROMPTON, APRIL I. NEANDER, TIMOTHY B. ROWE   +4 more
doaj   +1 more source

X-ray micro computed-tomography [PDF]

Current 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]

British 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, Mark K, Duncan, Simon P G, Padley   +2 more
openaire   +2 more sources

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

X-ray Digital Radiography and Computed Tomography

Journal of Imaging, 2022
In recent years, X-ray imaging has rapidly grown and spread beyond the medical field; today, it plays a key role in diverse research areas [...]
Maria Pia Morigi, Fauzia Albertin
doaj   +1 more source

Potential of ultra-high-resolution photon-counting CT of bone metastases: initial experiences in breast cancer patients

npj Breast Cancer, 2021
Conventional CT scanners use energy-integrating detectors (EIDs). Photon-counting detector (PCD) computed tomography (CT) utilizes a CT detector technology based on smaller detector pixels capable of counting single photons and in addition discriminating
E. Wehrse, S. Sawall, L. Klein, P. Glemser, S. Delorme, H.-P. Schlemmer, M. Kachelrieß, M. Uhrig, C. H. Ziener, L. T. Rotkopf   +9 more
doaj   +1 more source