Data Acquisition in 4D Atomic Electron Tomography

Atomic electron tomography: 3D structures without crystals.

Crystallography has been fundamental to the development of many fields of science over the last century. However, much of our modern science and technology relies on materials with defects and disorders, and their three-dimensional (3D) atomic structures are not accessible to crystallography. One method capable of addressing this major challenge is atomic electron tomography. By combining advan...

Atomic Scale Resolution Electron Tomography: Data Analysis, Projection Alignment and 3D Reconstruction

Electron tomography is a powerful technique that enables to determine the 3D internal structure of a sample from a tilt series of 2D projections. Although current aberration-corrected transmission electron microscopes can achieve a resolution of 0.5 Å, radiation damage, projection misalignment and the “missing wedge” problem (i.e. specimens cannot usually be tilted beyond ±79°) have previously ...

Optical Diffusion Tomography Data Acquisition System

Optical diffusion tomography (ODT) has recently found renewed interest by the scientific and medical community due to advances in imaging electronics, computer processing power, development of tumor marking dyes, and image reconstruction algorithms. The development of this technology may allow the use of near infra red and infra red light to image internal structures of tissue without the use o...

Fast Data Acquisition System for Impedance Tomography

In the paper concept of the measurement (based on the sampling of potential differences during one period of the measuring signal) for impedance tomography data acquisition is described. Proposal of elimination of influence of dc electrochemical potential on data acquisition system is given in the paper as well. Thus suggested method enables increasing the rate of measurement. Results of experi...

Positron Emission Tomography-Computed Tomography Data Acquisition and Image Management