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Using Tomoauto: A Protocol for High-throughput Automated Cryo-electron Tomography
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A model based atomic resolution tomographic algorithm.

W Van den Broek1, S Van Aert, D Van Dyck

  • 1EMAT, University of Antwerp, Groenenborgerlaan 171, B-2020 Antwerp, Belgium. wouter.vandenbroek@ua.ac.be

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Summary
This summary is machine-generated.

This study introduces a new reconstruction technique for high angular annular dark field scanning transmission electron microscopy (HAADF-STEM) tomography. The method improves atomic position accuracy and noise resistance by incorporating prior knowledge of microscope parameters and atomic structures.

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Area of Science:

  • Materials Science
  • Physics
  • Microscopy

Background:

  • High angular annular dark field scanning transmission electron microscopy (HAADF-STEM) is crucial for atomic resolution imaging.
  • Improving the accuracy and robustness of tomographic reconstructions in HAADF-STEM is an ongoing challenge.

Purpose of the Study:

  • To develop an improved reconstruction technique for HAADF-STEM tomography.
  • To enhance the accuracy of atomic position estimation and noise resistance.

Main Methods:

  • A novel reconstruction technique was developed, explicitly incorporating microscope parameters and the atomic nature of the object.
  • The reconstruction was formulated as a maximum likelihood estimator.
  • The precision limits and expected noise levels were analyzed for specific experimental setups.

Main Results:

  • The proposed technique yields more accurate atomic position estimates.
  • The method demonstrates significant resistance to noise in reconstructions.
  • Exploration of precision limits allows for prediction of noise in experimental setups.

Conclusions:

  • The developed reconstruction technique significantly improves HAADF-STEM tomography.
  • The method offers enhanced accuracy and noise resilience for atomic-resolution imaging.
  • The technique shows potential for generalization to other tomographic experiments.