Volume 18 No 2 (2020)
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Predicting of Asymptotic Properties of Magnetic Lens Using Analytical Potential Function
Saadi R. Abbas, Wasan J. Kadhem, Talib M. Abbas
Abstract
The theoretical computer research completed to depict a combination enhancement strategy of even attractive focal points with the guide of numerical examination techniques, where a specific scientific form for the axial scalar potential was proposed to be a target task. This feature has an optimization parameter which is the pole piece radius (R) that its influence on the asymptote properties was investigated. Using the simulation in Matlab, the electron beam trajectory was specified and magnetic lens pole piece shape has been reconstructed. Results have clearly shown that this lens can be reconstructed with projector focal properties. Moreover, the outcomes clearly show that there is a great capacity for delivering a regular attractive field for the bending free twofold pole piece projector focal points to be utilized later in the electron microscope.
Keywords
Electron Microscopy, Charge-particale Optics, Magnetic Lenses, Synthesis Procedure.
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