Concurrent in situ ion irradiation transmission electron microscope

Transmission Electron Microscopy with in situ Ion Irradiation

The macroscopic properties of materials exposed to irradiation are determined by radiation damage effects which occur on the nanoscale. These phenomena are complex dynamic processes in which many competing mechanisms contribute to the evolution of the microstructure and thus to its end-state. In order to explore and understand the behaviour of existing materials and to develop new technologies,...

In situ straining experiments in the transmission electron microscope

Transmission Electron Microscopy Study of Graphite Underin Situion Irradiation Original Citation Transmission Electron Microscopy Study of Graphite under in Situ Ion Irradiation

Graphite is employed as a moderator and structural component in 18 of the United Kingdom’s fleet of Magnox and Advanced Gas-cooled Reactors (AGRs). During the operational lifetime of a reactor, graphite undergoes complex physical and mechanical property changes including dimensional modification, owing to the effects of temperature, oxidation and irradiation-induced atomic displacements. In ord...

In Situ Lift-out with a Focused-ion Beam/scanning-electron Microscope: a New Technique for Creating Transmission-electron-microscope Samples of Earth and Planetary

Introduction: Information on crystal chemistry and structure is fundamental to understanding the chemical and physical processes that occurred during the formation of the solar system. The combination of atomic-resolution imaging and compositional analysis make the transmission electron microscope (TEM) a powerful tool for gaining insight into such processes and addressing a wide range of geoch...

Isotope analysis in the transmission electron microscope

The Ångström-sized probe of the scanning transmission electron microscope can visualize and collect spectra from single atoms. This can unambiguously resolve the chemical structure of materials, but not their isotopic composition. Here we differentiate between two isotopes of the same element by quantifying how likely the energetic imaging electrons are to eject atoms. First, we measure the dis...