title: Ultimate performance of objective magnetic lens.
authors.affiliation: Physics Department, Assiut University, Assiut, Egypt. amir@aun.edu.eg
authors.forename: A S A
authors.initials: AS
authors.lastname: Alamir
mesh_terms: D007501:Iron; D007909:Lenses; D008280:Magnetics / Q000295:instrumentation*; D008854:Microscopy, Electron / Q000295:instrumentation*
chemical_list: D007501:Iron