Computational Optimization Aberration Coefficients of an Einzel Lens Operated Under Zero Magnification
Samir Khudhir Al-ani1, Nada Abdulfatah Khattab2
1Prof. Dr. Samir Khudhir Al-ani, Professor, Department of Physical, College of Science For Women, Baghdad University, Baghdad, Iraq.
2Nada Abdulfatah Khattab, Department of Physical, College of Science For Women, Baghdad University, Baghdad, Iraq.
Manuscript received on February 21, 2017. | Revised Manuscript received on February 26, 2017. | Manuscript published on March 05, 2017. | PP: 1-2 | Volume-7 Issue-1, March 2017. | Retrieval Number: A2945037117/2017©BEIESP
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©The Authors. Published By: Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: In this researcher has been studied to design an einzel lens and this present researcher, Which concerted about the design of electrostatic potential lens for focused charge particle beam by using inverse method in designing to electrostatic lens ,the paraxial ray equation was solved using Rung – Kutta method ,The spherical and chromatic aberration coefficient Cs and Cc, respectively have been computed using Simpsons rule. The shape of the electrode of the electrostatic lens were determined by solving Laplace’s equation, in this research, the results showed low values of spherical and chromatic aberrations which are considered as good criteria for good design Electron Optics, einzel Lens.
Keywords: Electrostatic Lens, spherical aberrations, chromatic aberrations.