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Journal ArticleDOI

Electron tomography and holography in materials science

TLDR
An overview of the techniques of electron tomography and electron holography is presented and their capabilities with the aid of case studies that span materials science and the interface between the physical sciences and the life sciences are demonstrated.
Abstract
The rapid development of electron tomography, in particular the introduction of novel tomographic imaging modes, has led to the visualization and analysis of three-dimensional structural and chemical information from materials at the nanometre level. In addition, the phase information revealed in electron holograms allows electrostatic and magnetic potentials to be mapped quantitatively with high spatial resolution and, when combined with tomography, in three dimensions. Here we present an overview of the techniques of electron tomography and electron holography and demonstrate their capabilities with the aid of case studies that span materials science and the interface between the physical sciences and the life sciences.

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Citations
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Journal ArticleDOI

3D reconstruction of curvilinear structures with stereo matching deep convolutional neural networks

- 01 Apr 2022 - 
TL;DR: In this article , a fully automated pipeline for both detection and matching of curvilinear structures in stereo pairs by utilizing deep convolutional neural networks (CNNs) without making any prior assumption on 3D shapes was proposed.
DissertationDOI

Multi-microscopy characterisation of III-nitride devices and materials

TL;DR: In this paper, a dual-beam focussed ion beam/scanning electron microscope (FIB/SEM) was used to perform correlative studies between the optical and structural properties of III-nitride materials.
Journal ArticleDOI

Recent Progress on Revealing 3D Structure of Electrocatalysts Using Advanced 3D Electron Tomography: A Mini Review

TL;DR: In this article , a mini-review summarizes recent progress on revealing 3D structures of electrocatalysts using 3D electron tomography at nanoscale and atomic scale, respectively, where morphology, composition, porous structure, surface crystallography and atomic distribution can be revealed and correlated to the performance of the electrocatalysis.
Journal ArticleDOI

Single-atom level determination of 3-dimensional surface atomic structure via neural network-assisted atomic electron tomography.

TL;DR: In this article, a neural network-assisted atomic electron tomography approach was introduced to provide a 3D reconstruction of metallic nanoparticles at individual atom level, which can be used for fine tailoring of their performance.
Journal ArticleDOI

Geometry segmentation of voxelized representations of heterogeneous microstructures using betweenness centrality

TL;DR: In this article, the authors present a robust method for automating removal of "segregation artifacts" in segmented tomographic images of three-dimensional heterogeneous microstructures, where the objective is to accurately identify and separate discrete features in composite materials where limitations in imaging resolution lead to spurious connections near close contacts.
References
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Journal ArticleDOI

Representation of a Function by Its Line Integrals, with Some Radiological Applications

TL;DR: In this paper, a method for finding a real function in a finite region of a plane given its line integrals along all straight lines intersecting the region was given, and the solution found is applicable to three problems of interest for precise radiology and radiotherapy: (1) the determination of a variable x-ray absorption coefficient in two dimensions, (2) the distribution of positron annihilations when there is an inhomogeneous distribution of the positron emitter in matter, and (3) a variable density of matter with constant chemical composition, using the energy loss
Journal ArticleDOI

Iterative methods for the three-dimensional reconstruction of an object from projections

TL;DR: It is shown that in general ART produces erroneous reconstructions, and an alternative iterative method is proposed which will give correct reconstructions under certain conditions.
Journal ArticleDOI

Reconstruction of Three Dimensional Structures from Electron Micrographs

TL;DR: General principles are formulated for the objective reconstruction of a three dimensional object from a set of electron microscope images and applied to the calculation of aThree dimensional density map of the tail of bacteriophage T4.
MonographDOI

Three-Dimensional Electron Microscopy of Macromolecular Assemblies

Joachim Frank
TL;DR: In this article, a three-dimensional reconstruction interpretation of 3D images of macromolecules is presented. Butts et al. reconstructed macromoles from micrographs of single macromolcules.
Journal ArticleDOI

Molecular structure determination by electron microscopy of unstained crystalline specimens.

TL;DR: The projected structures of two unstained periodic biological specimens, the purple membrane and catalase, have been determined by electron microscopy to resolutions of 7 A and 9 A, respectively.
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