Speaker
Description
FACET-II is a National User Facility at SLAC focusing on research in the areas of advanced acceleration and coherent radiation techniques with high-energy electron beams [1]. This contribution summarizes recent experimental results relevant for FEL and high brightness beam applications including the generation of extremely high current beams through laser-electron phase space manipulation [2], and the demonstration of a plasma injector brightness transformer [3]. We also discuss present and future R&D plans for the facility including attosecond X-ray generation with plasma-chirped electron bunches [4] and the possibility of utilizing the FACET-II linac as a driver for a very high energy XFEL (up to ~50 keV photon energy) with a high energy (25 - 30 GeV) electron beam.
[1] Yakimenko et al., PRAB 22, 101301 (2019)
[2] C. Emma, N. Majernik, K. Swanson et al., PRL 134, 085001 – (2025)
[3] C. Zhang, D. Storey et al., Nature Communications volume 16, Article number: 10719 (2025)
[4] C. Emma et al., APL Photonics 6, 076107 (2021)
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