The Wire Transport Code

Abstract

The wire transport code is a particle code that follows a single disc of the electron beam through the transport system. It was developed to study the dynamics of relativistic electron beam propagation in a transport tube in which a wire conditioning zone is present. In order for the beam to propagate successfully in the transport section it must be matched onto the wire by focusing elements. The beam must then be controlled by strong lenses as it exits the wire zone. The wire transport code was designed to model this process in substantial detail. It is able to treat axially symmetric problems as well as those in which the beam is transversely displaced from an axis of the transport tube. The focusing effects of foils and various beamline lenses are included in the calculations. After discussing briefly the physics of wire propagation this paper describes the structural and operational aspects of the code.