Articles with "contrast tomography" as a keyword



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3D orientation data – A comparison of diffraction contrast tomography and serial sectioning electron backscatter diffraction for the nickel-base superalloy IN738LC

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Published in 2020 at "Materials Letters"

DOI: 10.1016/j.matlet.2019.127177

Abstract: Abstract For specimen characterization, X-ray microscopy offers a variety of advantages like non-destructive investigations and reduced preparation effort for the samples. Orientation measurements are possible using diffraction contrast tomography (DCT). However, lateral resolution is lower… read more here.

Keywords: microscopy; diffraction contrast; diffraction; contrast tomography ... See more keywords
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Correlative x-ray phase-contrast tomography and histology of human brain tissue affected by Alzheimer's disease

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Published in 2020 at "NeuroImage"

DOI: 10.1016/j.neuroimage.2020.116523

Abstract: Alzheimer's disease (AD) is a neurodegenerative disorder which is characterized by increasing dementia. It is accompanied by the development of extracellular β-amyloid plaques and neurofibrillary tangles in the gray matter of the brain. Histology is… read more here.

Keywords: ray phase; alzheimer disease; tissue; contrast tomography ... See more keywords
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3D characterization of partially recrystallized Al using high resolution diffraction contrast tomography

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Published in 2018 at "Scripta Materialia"

DOI: 10.1016/j.scriptamat.2018.08.001

Abstract: Abstract Synchrotron diffraction contrast tomography (DCT) is for the first time used to characterize recrystallized grains in partially recrystallized Al. The positions, orientations and 3D shapes of >900 recrystallized grains are reconstructed within a gauge… read more here.

Keywords: diffraction; contrast tomography; partially recrystallized; diffraction contrast ... See more keywords
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Deterministic versus stochastic level-set regularization in nonlinear phase contrast tomography

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Published in 2017 at "Inverse Problems in Science and Engineering"

DOI: 10.1080/17415977.2016.1201662

Abstract: A new nonlinear level-set regularization method to reconstruct the complex refractive index distribution with in-line phase contrast tomography measurements is presented under the assumption that the index is piecewise constant. The nonlinear iterative approach is… read more here.

Keywords: level; set regularization; contrast tomography; phase contrast ... See more keywords
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Texture and Genesis of Polycrystalline Varieties of Diamond Based on Phase-Contrast and Diffraction Contrast Tomography

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Published in 2019 at "Geochemistry International"

DOI: 10.1134/s0016702919090106

Abstract: Structural peculiarities of several types of cryptocrystalline diamond varieties: carbonado, impact-related yakutite and cryptocrystalline diamond aggregates from kimberlite were studied using Infrared spectroscopy, X-ray diffraction contrast (DCT—Diffraction Contrast Tomography) and phase contrast tomography (PCT). It… read more here.

Keywords: diffraction contrast; spectroscopy; contrast; contrast tomography ... See more keywords
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Multi-scale X-ray phase-contrast tomography of murine heart tissue.

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Published in 2020 at "Biomedical optics express"

DOI: 10.1364/boe.386576

Abstract: The spatial organization of cardiac muscle tissue exhibits a complex structure on multiple length scales, from the sarcomeric unit to the whole organ. Here we demonstrate a multi-scale three-dimensional imaging (3d) approach with three levels… read more here.

Keywords: ray phase; tissue; contrast tomography; multi scale ... See more keywords