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PyCCAPT: A Python Package for Open-Source Atom Probe Instrument Control and Data Calibration.

Mehrpad Monajem1, Benedict Ott1, Jonas Heimerl2

  • 1Institute for General Materials Properties, Department of Materials Science & Engineering, Friedrich-Alexander Universität Erlangen-Nürnberg (FAU), Erlangen, Germany.

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Summary
This summary is machine-generated.

This study introduces PyCCAPT, an open-source Python software for atom probe tomography (APT). It offers flexible instrument control and enhanced calibration, overcoming limitations of proprietary commercial systems.

Keywords:
atom probe controlatom probe data acquisitionatom probe raw data analysisatom probe tomographydata calibration

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Area of Science:

  • Materials Science
  • Analytical Chemistry
  • Instrumentation

Background:

  • Commercial atom probe tomography (APT) systems utilize closed, proprietary software, restricting low-level access for advanced experimental control and data analysis.
  • Recent advancements in hardware and programming languages like Python enable the development of open-source APT solutions.
  • Developing custom control software, instrumentation, and calibration algorithms for APT remains a significant hurdle for researchers.

Purpose of the Study:

  • To present an open-source, adaptable control system for atom probe tomography (APT).
  • To provide essential instrument and experiment calibration algorithms with full user transparency.
  • To address the limitations of proprietary software in commercial APT systems and facilitate innovative research.

Main Methods:

  • Development of a flexible control system adaptable to various hardware configurations.
  • Implementation of essential instrument and experiment calibration algorithms.
  • Creation of an open-source software framework named Python Control and Calibration for Atom Probe Tomography (PyCCAPT).

Main Results:

  • PyCCAPT offers a transparent and flexible framework for APT control and data processing.
  • The system enhances calibration accuracy beyond the capabilities of commercial systems.
  • The calibration module is applicable to direct-flight-path systems and adaptable for reflection-based instruments.

Conclusions:

  • PyCCAPT provides an open-source solution to bridge the gap in experimental control and data processing for atom probe tomography.
  • The software empowers researchers with greater flexibility for innovative experiments and improved calibration accuracy.
  • While not for commercial data acquisition, PyCCAPT's calibration module offers significant value for various APT instrument types.