Physical Review Accelerators and Beams (Jul 2020)
Beam loading assisted matching scheme for high quality plasma acceleration in linear regime
Abstract
We propose and we numerically design a working point for beam driven plasma wakefield acceleration that allows us to preserve the witness quality. This working point is a new scheme where a low density driver generates a wakefield in linear regime and the witness transverse evolution is dominated by the beam loading effect. We derived optimal matching conditions to prevent the phase space degradation by means of a transverse envelope equation.