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Electrochemical Etching and Characterization of Sharp Field Emission Points for Electron Impact Ionization
Published on: July 12, 2016
Development of a 1 MV field-emission transmission electron microscope
T Kawasaki1, I Matsui, T Yoshida
1Advanced Research Laboratory, Hitachi, Ltd, Hatoyama, Saitama, Japan. tkawa@harl.hitachi.co.jp
Journal of Electron Microscopy
|March 29, 2001
Summary
A new 1 MV field-emission transmission electron microscope was developed, achieving high brightness and atomic-scale resolution. This advanced instrument enables detailed nanoscale imaging and material analysis.
Area of Science:
- Materials Science
- Physics
- Electron Microscopy
Background:
- Advancements in electron microscopy are crucial for nanoscale material characterization.
- High-performance electron sources and stable high-voltage systems are key to achieving high resolution.
Purpose of the Study:
- To detail the development and specifications of a novel 1 MV field-emission transmission electron microscope.
- To demonstrate the instrument's capability for high-brightness electron beam generation and high-resolution imaging.
Main Methods:
- Design and construction of a 1 MV field-emission transmission electron microscope.
- Integration of a field emission gun with a pre-accelerating magnetic lens.
- Implementation of a highly stable high-voltage power supply (0.5 ppm min(-1)).
Main Results:
- Achieved an electron beam brightness of 1.8 x 10(10) A cm(-2) sr(-1).
- Attained a lattice resolution of 49.8 picometers (pm).
- Demonstrated the successful operation of the 1 MV field-emission transmission electron microscope.
Conclusions:
- The developed 1 MV field-emission transmission electron microscope offers superior performance for advanced microscopy.
- The instrument's specifications facilitate high-resolution imaging and detailed analysis of materials at the atomic scale.
- This technological advancement contributes to the field of transmission electron microscopy and nanoscale science.
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