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Automatic system for electron tomography data collection in the ultra-high voltage electron microscope.

Meng Cao1, Ryuji Nishi2, Fang Wang3

  • 1Key Laboratory for Physical Electronics and Devices of the Ministry of Education, Department of Electronic Science and Technology, Xi'an Jiaotong University, Xi'an 710049, PR China; Research Centre for Ultra-High Voltage Electron Microscopy, Osaka University, 7-1 Mihogaoka, Ibaraki, Osaka 567-0047, Japan.

Micron (Oxford, England : 1993)
|September 26, 2017
PubMed
Summary

An automated system for electron tomography significantly reduces data collection time. This new method uses image matching and auto-focus for efficient tilt series acquisition in microscopy.

Keywords:
Auto focusAuto trackingData collectionElectron tomographyImage stitching

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Area of Science:

  • Microscopy and Imaging Technologies
  • Electron Tomography
  • Computational Imaging

Background:

  • Electron tomography requires extensive tilt series data collection.
  • Manual collection of tilt series is time-consuming and prone to errors.
  • Advancements in automated microscopy are crucial for high-throughput structural analysis.

Purpose of the Study:

  • To develop and implement an automated system for collecting tilt series in electron tomography.
  • To improve the efficiency and reduce the time consumption of data acquisition.
  • To enhance the precision of tilt series collection using advanced imaging techniques.

Main Methods:

  • Remote control of an ultra-high voltage electron microscope (HVEM).
  • Image matching technique utilizing normalized correlation coefficient for field of view tracking.
  • Auto-focusing based on image sharpness optimization.
  • Development of an image stitching toolkit for field of view expansion.

Main Results:

  • The automated system successfully collects tilt series for electron tomography.
  • Significant reduction in time required for tilt series data collection was achieved.
  • Precise tracking of the field of view and accurate focusing at each tilt angle were demonstrated.
  • Image stitching toolkit effectively expanded the observable field of view.

Conclusions:

  • The developed automatic system streamlines electron tomography data collection.
  • This automation leads to substantial time savings and improved efficiency.
  • The system offers a robust solution for high-quality tilt series acquisition in microscopy.