Plasma Wakefield Acceleration Experiments at FACET-II

Commissioning for the FACET-II facility at SLAC National Accelerator Laboratory is scheduled to begin in Fall 2019, and electron beam-driven plasma wakefield acceleration will feature prominently in its experimental program. Early experiments will aim to achieve pump depletion of the drive beam while accelerating the witness beam by 10 GeV and preserving emittance at the 10 mm-mrad level in a Lithium oven plasma source. Later experiments will aim to achieve the same goals while preserving emittance at the 1 mm-mrad level in a laser-ionized gas plasma source. Experimental considerations and plans will be discussed, as well as simulated predictions of results for the first run of FACET-II.