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

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.