Beam-Driven Plasma Wakefield Acceleration of Electrons in Lithium and Rubidium Plasmas
ORAL
Abstract
We report on the plasma wakefield experiments performed at the newly commissioned FACET facility at the SLAC National Laboratory. A beam of 2x10$^{10}$ 20.5 GeV electrons was focused through a 20-40 cm long vapor column of lithium or rubidium produced in a heat-pipe oven. The electron beam tunnel-ionized the metal vapor and then drove a large amplitude plasma wake. The resulting interaction was investigated for different plasma densities and beam parameters. The primary diagnostic was the energy gain and loss features observed using an imaging magnetic spectrometer. Preliminary data and a comparison between acceleration in rubidium and lithium plasmas will be presented.
*This work was supported by the National Science Foundation Grant No. PHY-0936266 (UCLA) and the Department Of Energy Grant No. DE-FG02-92ER40727 (UCLA) and DE-AC02-76SF00515 (SLAC).
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