High-resolution thermionic cathode scanning transmission electron microscope
- 1 June 1973
- journal article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 22 (11) , 610-612
- https://doi.org/10.1063/1.1654527
Abstract
A new scanning transmission electron microscope has been built which uses a lanthanum hexaboride thermal cathode electron gun. Initial results indicate a beam diameter of 5 Å and point‐to‐point resolution of 7 Å. The vacuum level in the instrument is similar to that of standard commercially available electron microscopes. A comparison of the performance of tungsten hairpin, lanthanum hexaboride, and field emission cathodes for scanning transmission electron microscopy is given.Keywords
This publication has 4 references indexed in Scilit:
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- Electron Gun Using a Field Emission SourceReview of Scientific Instruments, 1968
- Scanning Electron MicroscopyPublished by Elsevier ,1966