• Corpus ID: 119044864

3D reconstruction of the spatial distribution of dislocation loops using a triangulation approach

  title={3D reconstruction of the spatial distribution of dislocation loops using a triangulation approach},
  author={Hongbing Yu and Xiaoou Yi and Felix Hofmann},
  journal={arXiv: Materials Science},
We propose a new approach for reconstructing the 3D spatial distribution of small dislocation loops (DLs) from 2D TEM micrographs. This method is demonstrated for small DLs in tungsten, formed by low-dose ion-implantation, that appear as circular spots in diffraction contrast images. To extract the 3D position of specific DLs, their 2D position in multiple weak-beam dark-field TEM micrographs, recorded at different tilt angles, is fitted. From this fit the geometric centre and size of each DL… 


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