Focal properties and chromatic and spherical aberrations of the three-electrode electron lens
- 1 September 1956
- journal article
- Published by IOP Publishing in British Journal of Applied Physics
- Vol. 7 (9) , 330-332
- https://doi.org/10.1088/0508-3443/7/9/304
Abstract
Published theoretical and experimental values of the focal lengths of simple three-electrode electron lenses are compared and found to be in general agreement. These are presented in the form of graphs which show directly the dependence of focal length on lens geometry and voltage ratio. Analogous graphs are derived for spherical and chromatic aberrations in the form of the ratios CS/S and CC/S (S being the separation of adjacent electrodes), and the general relation between the various curves is discussed.Keywords
This publication has 3 references indexed in Scilit:
- A Unified Representation of Magnetic Electron Lens PropertiesProceedings of the Physical Society. Section B, 1955
- Measured Properties of Strong "Unipotential" Electron LensesProceedings of the Physical Society. Section B, 1949
- Variation of the Axial Aberrations of Electron Lenses with Lens StrengthJournal of Applied Physics, 1942