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A high-voltage scanning transmission electron microscope at Nagoya University
M Hibino1, H Shimoyama, S Maruse
1Department of Electronics, Faculty of Engineering, Nagoya University, Japan.
Journal of Electron Microscopy Technique
|July 1, 1989
Summary
Nagoya University developed the H-1250ST, a 1.25 MV scanning transmission electron microscope (STEM) with a field-emission gun. This high-voltage STEM offers advanced performance for materials science research.
Area of Science:
- Materials Science
- Physics
- Electron Microscopy
Background:
- High-voltage electron microscopes are crucial for advanced materials analysis.
- Scanning Transmission Electron Microscopy (STEM) offers high-resolution imaging capabilities.
Purpose of the Study:
- To describe the development of the H-1250ST, a 1.25 MV STEM.
- To detail the design, instrumentation, and techniques of this advanced electron microscope.
Main Methods:
- Construction of a 1.25 MV high-voltage scanning transmission electron microscope (STEM) - the H-1250ST.
- Integration of a field-emission gun for enhanced electron beam properties.
- Development of specialized techniques for high-level STEM operation.
Main Results:
- The H-1250ST microscope was successfully constructed and operational.
- The instrument provides high-level STEM performance.
- It also supports conventional transmission microscopy mode.
Conclusions:
- The H-1250ST represents a significant advancement in high-voltage electron microscopy.
- This microscope facilitates detailed materials characterization through advanced STEM techniques.