Preservation of Beam Emittance in the Presence of Ion Motion in Future High-Energy Plasma-Wakefield-Based Colliders

R. Gholizadeh, T. Katsouleas, P. Muggli, C. Huang, W. Mori
2010 Physical Review Letters  
The preservation of beam quality in a plasma wakefield accelerator driven by ultrahigh intensity and ultralow emittance beams, characteristic of future particle colliders, is a challenge. The electric field of these beams leads to plasma ions motion, resulting in a nonlinear focusing force and emittance growth of the beam. We propose to use an adiabatic matching section consisting of a short plasma section with a decreasing ion mass to allow for the beam to remain matched to the focusing force.
more » ... the focusing force. We use analytical models and numerical simulations to show that the emittance growth can be significantly reduced.
doi:10.1103/physrevlett.104.155001 pmid:20481996 fatcat:odngpvj7yva6jn674q5fgw7jme