Speaker
Description
Plasma wakefield acceleration offers a promising path towards next-generation accelerators, but achieving the beam quality suitable for a collider remains a significant challenge. The ALiVE concept aims to deliver low-emittance beams using a highly relativistic, short proton driver to generate wakefields in the strongly nonlinear blowout regime, in which emittance growth of an electron witness bunch is expected to be negligible, while positron emittance increases by roughly a factor of four. Despite low emittance growth, beams generated in this regime exhibit an intrinsically round transverse profile, leading to enhanced disruption and a broad energy spectrum at the interaction point. We present the initial steps towards a Beam Delivery System capable of transporting round beams from a plasma acceleration stage, with particular emphasis on mitigating beamstrahlung and maximising the luminosity contained within the top 1\% of the energy peak, while controlling chromatic aberrations in both the electron and positron lines.
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