تصميم ودراسة الخواص البصرية للعدسات الكهرومغناطيسية ثنائية القطب المتناظرة باستخدام برنامج (EOD)/Design and Study of The Optical Properties of Electromagnetic lenses Dual-polar analog using the program (E)

Abstract

In this research,  was designed and studied the objective focal properties to the magnetic electron lenses from type a symmetrical double Polepiece by using a program (EOD software) and studied the effect of axial bore diameter for it on the focal length and aberration coefficients (spherical and chromatic), It has been observed that the objective focal properties to improve and significantly as lower axial bore diameter.