Using atom probe tomography to map the distribution of lead isotopes within a zircon crystal only 400 micron in size professor john valley from the university of wisconsinmadison and colleagues determined the crystal formed 44 billion years ago.
Atom probe tomography apt represents a revolutionary characterization tool for materials that can image individual atoms in three dimensions a major advancement over the two dimensional images of other microscopy techniques.
The microscopy group at ornl specializes in the development and application of advanced electron microscopy atom probe tomography and surface science techniques for the subnm scale characterization of the microstructure chemical nature and composition of materials.
Cameca atomprobe at a glance cameca is pleased to host the atom probe tomography users website the goal of this site is to be a single place for apt users and system owners to get information and share information around the world with cameca apt recent news.
Welcome to the atom probe tomography laboratory at the colorado school of mines our group has several areas of research focus including our group has several areas of research focus including atomic scale measurement of defect chemistry especially grain boundary and interface analyses in oxides and semiconductors see recent.