STEM simulations of dislocation loops with Burgers vector b=½a<111>



Simulated STEM images of dislocation loops in tungsten, in hdf5 file format, computed with the PRISMATIC code [1,2]. Data is for electron beam energies of 100 kV and 200 kV, with beam incidence along &lt;100&gt; and &lt;110&gt; directions, and convergence angles 70 mrad (100 and 200 kV beam), 50 and 30 mrad (100 kV beam). Dislocation loops have vacancy and interstitial nature, and are located centrally in a 20 nanometer thick sample. This work has been performed within the framework of the EUROfusion Consortium and has received funding from the Euratom research and training programme 2014-2018 and 2019-2020 under grant agreement No 633053. The work is part of the Enabling Research project AtomCRaD ENR-MFE19.CCFE-03. The views and opinions expressed herein do not necessarily reflect those of the European Commission. We acknowledge grants of computer capacity from the Finnish Grid and Cloud Infrastructure (persistent identifier urn:nbn:fi:research-infras-2016072533). [1] C Ophus, Advanced Structural and Chemical Imaging 3(1), 13 (2017). [2] A Pryor Jr, et al., Advanced Structural and Chemical Imaging 3, (2017).
Date made available1 Jan 2021

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