论文研究The aberration theory of a combined electron focusingdeflection system with

Theaberrationtheoryofacombinedelectronfocusing-deflectionsystemwitharotatingdeflectionfieldfollowingtherotationoftheelectrons，任岩，唐天同，Anewtypeofcombinedelectronfocusing-deflectionsystemisproposed,inwhichtheorientationofthedeflectionfieldisrotatedfollowingther