Comparison of The Objective And Projector Optical Properties Of Asymmetrical Electron Lens By Using Inversion Design

Abstract

In this theoretical research investigation compares has been carry out for objective and projector optical properties for asymmetrical double polepiece magnetic lenses under magnetic unsaturated condition which whose axial magnetic field distribution representing well known models in electron optics have same pole shaped such as Glaser’s Bell-shaped model, power to (3/2) model and power to (4) model. The importance of this research lie in the fact that show which model has best objective and projector properties, since researcher doesn’t investigate this state later.