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.read more
Citations
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Book ChapterDOI
TEM Characterization of Nanocomposite Materials
TL;DR: In this paper, the authors describe the introduction and application of 2D and 3D characterization by transmission electron microscopy (TEM) of two types of nanocomposite materials.
Journal ArticleDOI
Improvement of Alignment Accuracy in Electron Tomography
TL;DR: In this paper, an improved method for tilt series alignment with fiducial markers in electron tomography was developed, which used the Levenberg-Marquardt method to solve the nonlinear least squares problem by incorporating a new formula for the alignment model.
Journal ArticleDOI
Shape from projections via differentiable forward projector for computed tomography.
Jakeoung Koo,Anders Bjorholm Dahl,J. Andreas Bærentzen,Qiongyang Chen,Sara Bals,Vedrana Andersen Dahl +5 more
TL;DR: This work views the forward projection as a rendering process, and makes it differentiable by extending recent work in differentiable rendering, and uses the proposed forward model to reconstruct 3D shapes directly from projections.
Journal ArticleDOI
Visualizing Trace Pollutants in Solids at Nanoscale via Electron Tomography.
TL;DR: In this paper, progress on the state-of-the-art electron tomography is highlighted as an increasingly indispensable tool for visualizing contaminant distribution and transformation in three-dimensional (3D), including environmental pollutants at the water-minerals interfaces, toxicology assessment, environmental behavior of viruses in heterogeneous environmental media, etc.
Journal ArticleDOI
Prospects of linear reconstruction in atomic resolution electron holographic tomography.
TL;DR: This work investigated the artefacts that are produced if the reconstruction still assumes the Phase Grating Approximation even with an atomic resolution tilt series, and reconstructed electric potential clearly shows peaks at the positions of the atoms.
References
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P. N. T. Unwin,Richard Henderson +1 more
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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