Unique Features of the University of Maryland Electron Ring and the Necessity of PIC Code Simulation

The Maryland Electron Ring [1] is designed to explore the transport of beams with much higher space charge than other circular machines. In addition, the ring functions as a testbed for design and simulation codes. Applications such as Heavy Ion Fusion and High Intensity Colliders require the preservation of beam quality during transport over large distances. This paper describes the application of self-consistent particle-in-cell code simulations using the WARP suite [2] to the E-ring lattice. The model used includes the nonlinear details of the external magnetic fields, a cylindrical external conductor, and the dispersive effects of the circular lattice on a beam with a non-zero energy spread.