CONTROLLED TRANSPORT SYSTEM FOR AN ELLIPTIC CHARGED-PARTICLE BEAM

摘要

A charged-particle beam control system includes a plurality of external magnets that generate an axially-varying longitudinal magnetic (AVLM)/ axially-varying quadrupole magnetic (AVQM) field. A plurality of external electrode geometries generates an axially-varying longitudinal electrostatic (AVLE)/ axially-varying quadrupole electrostatic (AVQE) field. The external electrode geometries and magnets control and confine a charged-particle beam of elliptic cross-section.