2014
DOI: 10.24297/jap.v5i2.1954
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Visual Design Tool for Electrostatic Lelses

Abstract: Current research presents a visual-computational tool to design and investigate round electrostatic lenses in sense of analysis procedure. The finite elements methods is adopted to find the electrostatic potential in the lens region. Laplace’s equation is first replaced by a certain functional which physically represent the electric energy stored in the electric field. This functional is then minimized at each mesh point with respect to the nearest eight ones. This minimization process is proved to be entire… Show more

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Cited by 3 publications
(2 citation statements)
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“…Optimization through analysis has garnered significant attention since the middle of the previous century. Various concepts have been explored in the realm analysis methodology, including the impact of pole piece saturation on the focal characteristics of the target lens [23] and the influence of axial magnetic field distribution on the asymmetry of the objective lens in high-voltage electron microscopy [24]. The first methodology is called the "examination/analysis methodology" and depends on the experimentation that includes three categories known as "H1 programs" for magnetic scalar potential together with using and understanding of the Laplace conditions [25] and "H2 and H3 programs" for magnetic vector potential, addressing the conditions of Poisson [26].…”
Section: Literature Reviewmentioning
confidence: 99%
“…Optimization through analysis has garnered significant attention since the middle of the previous century. Various concepts have been explored in the realm analysis methodology, including the impact of pole piece saturation on the focal characteristics of the target lens [23] and the influence of axial magnetic field distribution on the asymmetry of the objective lens in high-voltage electron microscopy [24]. The first methodology is called the "examination/analysis methodology" and depends on the experimentation that includes three categories known as "H1 programs" for magnetic scalar potential together with using and understanding of the Laplace conditions [25] and "H2 and H3 programs" for magnetic vector potential, addressing the conditions of Poisson [26].…”
Section: Literature Reviewmentioning
confidence: 99%
“…CADTEL software consist of computational and plot steps of magnetic field, equipotential surfaces, flux lines, objective and projector properties, and poles shape for proposed lens design which are appear in auto visual interfaces, that are coded in visual basic language [5].…”
mentioning
confidence: 99%