PLEASE NOTE: This course has been cancelled for TMS2019.
Atom-Probe Tomography (APT) is a precise atom-by-atom dissection of a material volume, producing three-dimensional atomic-scale reconstructions, with sub-nanometer resolution, and chemical sensitivities approaching 10 atomic ppm. This full-day workshop, aimed at experienced users, will provide a comprehensive view of the state-of-the-art of the atom-probe technique. The course will first cover the basic physics of field-evaporation and time-of-flight mass spectroscopy, establishing advantages and limitations of APT and means for optimizing data fidelity. A review of sample preparation techniques will include electropolishing and focused ion beam (FIB) approaches, site-specific liftout techniques, capping considerations to preserve regions of interest, correlative microscopy using transmission electron microscopy and transmission Kikuchi diffraction, and cryogenic cooling necessary for analysis of biological materials. Next, “best practice” analytical parameters for a variety of materials will be presented, providing practical information to initiate successful APT experiments. The course will conclude with an intensive hands-on session covering advanced features of the CAMECA interactive visualization and analysis software (IVAS), including compositional profiles, proximity histograms, cluster analysis, interface analysis, and methods for achieving perfection in atomic positioning in the reconstruction.
Experienced users in atom-probe technique.
*Please note: All registration rates include lunch.
This course has been cancelled for TMS2019 and is no longer be accepting registrations.
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