High-resolution x-ray tomography using laboratory sources

Tkachuk, Andrei; Feser, Michael; Cui, Hongtao; Duewer, Fred; Chang, Huibin; Yun, Wenbing

doi:10.1117/12.682383

Cited by 35 publications

(34 citation statements)

References 7 publications

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“…72 Recently, commercial laboratory systems with sub-50 nm resolution have become available based on FZPs using Cu anode (8 keV) X-rays. 73 In view of the fact that it can take as long as a few minutes to acquire each very high resolution image, such tomographic datasets generally comprise only 50-200 radiographs. As the filtered back-projection reconstruction method does not perform well with such coarse angular spacing, algebraic reconstruction techniques (ART) are typically used (see 'Novel reconstruction strategies' section).…”

Section: Very High Resolution Imagingmentioning

confidence: 99%

Quantitative X-ray tomography

Maire¹,

Withers²

2013

International Materials Reviews

1,088

601

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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 reconstruction strategies suited to specific segmentation tasks and emerging methods that provide more insight (e.g. fast and high resolution imaging, crystallite (grain) imaging) than conventional attenuation based tomography. Methods and shortcomings of CT are examined for the quantification of 3D volumetric data to extract key topological parameters such as phase fractions, phase contiguity, and damage levels as well as density variations. As a non-destructive technique, CT is an ideal means of following structural development over time via time lapse sequences of 3D images (sometimes called 3D movies or 4D imaging). This includes information needed to optimise manufacturing processes, for example sintering or solidification, or to highlight the proclivity of specific degradation processes under service conditions, such as intergranular corrosion or fatigue crack growth. Besides the repeated application of static 3D image quantification to track such changes, digital volume correlation (DVC) and particle tracking (PT) methods are enabling the mapping of deformation in 3D over time. Finally the use of CT images is considered as the starting point for numerical modelling based on realistic microstructures, for example to predict flow through porous materials, the crystalline deformation of polycrystalline aggregates or the mechanical properties of composite materials.

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Section: Very High Resolution Imagingmentioning

confidence: 99%

Quantitative X-ray tomography

Maire¹,

Withers²

2013

International Materials Reviews

1,088

601

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“…Diffractive lenses are chromatic, i.e. the focal length is proportional to E. The application at laboratory X-ray sources is currently limited to mainly Cr, Cu and Ga anodes [4] employing their characteristic Kα radiation as well as to even softer radiation, e.g. using a laser plasma source [5].…”

Section: Introductionmentioning

confidence: 99%

“…The change of the optical path is caused by the fact, that the image being generated by the first diffraction order needs to be separated from all other orders, particularly not diffracted (zero order) X-rays. In case of a Fresnel zone plate, the separation is achieved by applying a monocapillary condenser mirror that produces a hollow cone illumination [4]. The aperture of a crossed partial MLL is only existent in one quadrant of the plane of the lens.…”

Section: Introductionmentioning

confidence: 99%

A dedicated illumination for full-field X-ray microscopy with multilayer Laue lenses

Niese¹,

Braun²,

Dietsch³

et al. 2016

AIP Conference Proceedings

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“…The imaging tests were performed in a laboratory X-ray microscope NanoXCT-100 (Xradia, Pleasanton/CA, USA; [1]). Its optical path is sketched in Fig.…”

Section: Description and Simulation Of The Bright Field Of An Mllmentioning

confidence: 99%

“…X-ray microscopy (XRM) has become a powerful technique to investigate nanoscale structures and kinetic processes at synchrotron radiation facilities and in laboratories [1] using X-ray lenses for optical imaging. Thus, the gap in spatial resolution for transmission imaging and tomography between microfocus X-ray radiography and transmission electron microscopy can be filled.…”

Section: Introductionmentioning

confidence: 99%

Full-field X-ray microscopy with crossed partial multilayer Laue lenses

Niese¹,

Krüger²,

Kubec³

et al. 2014

Opt. Express

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Abstract:We demonstrate full-field X-ray microscopy using crossed multilayer Laue lenses (MLL). Two partial MLLs are prepared out of a 48 µm high multilayer stack consisting of 2451 alternating zones of WSi 2 and Si. They are assembled perpendicularly in series to obtain two-dimensional imaging. Experiments are done in a laboratory X-ray microscope using Cu-Kα radiation (E = 8.05 keV, focal length f = 8.0 mm). Sub-100 nm resolution is demonstrated without mixed-order imaging at an appropriate position of the image plane. Although existing deviations from design parameters still cause aberrations, MLLs are a promising approach to realize hard X-ray microscopy at high efficiencies with resolutions down to the sub-10 nm range in future.

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High-resolution x-ray tomography using laboratory sources

Cited by 35 publications

References 7 publications

Quantitative X-ray tomography

Quantitative X-ray tomography

A dedicated illumination for full-field X-ray microscopy with multilayer Laue lenses

Full-field X-ray microscopy with crossed partial multilayer Laue lenses

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