Results 331 to 340 of about 475,897 (380)
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Applied X-ray computed tomography

Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 1995
Abstract The application of X-ray computed tomography (CT) for aircraft and aerospace structures and ancillary equipment has been investigated in the Advanced Development of X-Ray Computed Tomography Applications demonstration (CTAD) program sponsored by the NDE Branch of the Materials Directorate at the Air Force Wright Laboratory.
C.F. Buynak, R.H. Bossi
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X-Ray Angiography in the Computed Tomography [PDF]

open access: possible, 1996
X-ray angiography had once been considered as the sole method to evaluate blood vessels, and also is an important examination for intracranial neoplasms. As computed tomography (CT) and magnetic resonance imaging (MRI) is used more extensively, the number of X-ray angiography has been reduced dramatically.
Zhu Mingwang, Dai Jian-ping
openaire   +1 more source

X-Ray Imaging and Computed Tomography

2020
Synopsis: In this chapter, the reader is introduced to the basic physics of x-rays and their implementation in planar and computed tomography (CT) imaging.
John A. Kennedy   +3 more
openaire   +2 more sources

Accelerating X-ray fluorescence computed tomography

2009 Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 2009
This paper presents new approaches to accelerating X-ray fluorescence tomography (XFCT) that are grounded in both novel image acquisition strategies that improve the quality of the data acquired and in image reconstruction strategies that reduce the amount of data acquired.
Phillip Vargas   +3 more
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X-Ray Computed Tomography of Ultralightweight Metals

Research in Nondestructive Evaluation, 1999
In recent years several universities, government laboratories, and private industries have been developing specific process technologies, analytical modeling tools, and characterization methods for highly porous metals and alloys frequently collectively termed ``ultralightweight metals.'' The goal has been to achieve a family of metallic structures ...
J. M. Winter   +3 more
openaire   +2 more sources

Dynamic X-ray computed tomography

Proceedings of the IEEE, 2003
Dynamic computed tomography (CT) imaging aims at reconstructing image sequences where the dynamic nature of the living human body is of primary interest. The main applications concerned are image-guided interventional procedures, functional studies and cardiac imaging.
Stéphane Bonnet   +5 more
openaire   +1 more source

X-Ray Computed Tomography

2000
X-ray computed tomography (CT) is still a workhorse of neuroimaging despite the significant contributions to neurodiagnosis made by newer technologies such as magnetic resonance imaging (MRI), positron emission tomography (PET), and single proton emission CT (SPECT). Within only a few years of its introduction in 1972, by Geoffrey N.
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Radiation Load in X-Ray Computer Tomography

Biomedical Engineering, 2011
Methods for radiation load reduction in helical multidetector X-ray computer tomographs are discussed. The GOST IEC standards and dose monitoring methods should be corrected.
A. B. Blinov, N. N. Blinov
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The effects of scatter in x‐ray computed tomography

Medical Physics, 1982
The effects of detection of scattered radiation in x‐ray transmission CT are studied both theoretically and experimentally. It is shown that scatter induces nonlinear errors in the measurement of attenuation values which can lead to cupping, streaks, and CT number inaccuracies.
Robin D. Spital, Peter M. Joseph
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Industrial Applications of X-Ray Computed Tomography

Advances in X-ray Analysis, 1987
Computed tomography (CT), commonly known as CAT scanning (computerized axial tomography), is a technology that produces an image of the internaI structure of a cross sectional slice through an object via the reconstruction of a matrix of X-ray attenuation coefficients.
P. Engler, P. K. Hunt, W. D. Friedman
openaire   +2 more sources

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