Accurate Calculation of Properties of the Two-Tube Electrostatic Lens III. Aberration Coefficients
- 1 January 1972
- journal article
- research article
- Published by AIP Publishing in Review of Scientific Instruments
- Vol. 43 (1) , 84-87
- https://doi.org/10.1063/1.1685451
Abstract
Using numerical methods, electric fields and meridional electron trajectories have been calculated for the two‐tube electrostatic lens with sufficient precision to determine values for all the third‐order and several of the fifth‐order aberration coefficients for meridional trajectories. The aberration coefficients are expressed in a form which is intrinsic to the lens and do not depend on a particular object and aperture position. Results were obtained for voltage ratios of 2, 5, 10, 20, and 40.Keywords
This publication has 2 references indexed in Scilit:
- Accurate Calculation of Properties of the Two-Tube Electrostatic Lens II. First-Order Focal Properties and P-Q CurvesReview of Scientific Instruments, 1972
- Variation of the Axial Aberrations of Electron Lenses with Lens StrengthJournal of Applied Physics, 1942