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February 5, 2026

Edge-Detected 4DSTEM - effective low-dose diffraction data acquisition method for nanopowder samples in an SEM instrument

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Authors

NDNikita DenisovAOAndrey OrekhovJVJohan Verbeeck

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Overview

This work demonstrates a novel diffraction method for analyzing nanopowder samples in SEM, suggesting improved data collection efficiency and reduced beam damage.

Key Points

  • The aim is to explore a new method for acquiring electron diffraction data from nanopowder samples using SEM technology.
  • Developed a low-dose electron diffraction setup in a commercial SEM.
  • Utilized direct electron detectors to enhance sensitivity and reduce noise.
  • Implemented techniques to minimize acquisition time and beam damage.
  • Analyzed dispersed crystalline nanoparticles to validate the approach.
  • Successfully reduced data acquisition time significantly without compromising quality.
  • Lowered beam damage and contamination issues during data collection.
  • Achieved essential data reduction, allowing for efficient processing and storage.

Cite This Study

Denisov et al. (2025) studied this question.

synapsesocial.com/papers/6984348bf1d9ada3c1fb2d16https://doi.org/10.1051/epjap/2025002/pdf
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