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APT Calibrator: A Multifunctional C# Software Application for Reconstruction Calibration in Atom Probe Tomography.

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Atom probe tomography (APT) reconstructions are improved with the new APT Calibrator software. This tool enhances nanoscale compositional mapping by refining atomic positions and enabling advanced crystallographic analysis.

Keywords:
atom probe tomographycrystallographic pole figuredynamic reconstructionimage compression factor

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Area of Science:

  • Materials Science
  • Nanotechnology
  • Computational Science

Background:

  • Accurate atomic position reconstruction is vital for nanoscale compositional mapping in atom probe tomography (APT).
  • Existing calibration methods for APT reconstructions can be complex and time-consuming.
  • There is a need for accessible tools to improve the precision of APT data analysis.

Purpose of the Study:

  • To introduce the APT Calibrator, a novel software tool designed to simplify and enhance the calibration of atom probe tomography reconstructions.
  • To integrate established and novel calibration techniques for deriving crucial hyperparameters.
  • To facilitate advanced crystallographic analysis of microstructural defects.

Main Methods:

  • The APT Calibrator software was developed in C#.
  • It integrates multiple calibration methods to derive image compression and field reduction factors.
  • A new dynamic reconstruction method using "golden seed" fiducial markers is implemented.
  • The software supports atom probe crystallographic analysis.

Main Results:

  • The APT Calibrator streamlines the calibration process for atom probe tomography data.
  • It enables more accurate derivation of key hyperparameters like compression and field reduction factors.
  • The "golden seed" method allows for dynamic reconstruction, improving data fidelity.
  • Facilitates detailed crystallographic analysis of microstructural defects.

Conclusions:

  • The APT Calibrator software significantly enhances the accessibility and precision of atom probe tomography data analysis.
  • It provides a unified platform for essential calibration methods and advanced reconstruction techniques.
  • The tool is expected to benefit researchers in materials science and nanotechnology requiring accurate nanoscale compositional mapping.