23–28 Aug 2026
America/Los_Angeles timezone

FACET-II: recent experimental results and plans for R&D relevant to FEL applications

WEP19
26 Aug 2026, 17:00
1h
Poster Presentation Session 9: Novel Accelerator and FEL Concepts Wednesday Poster Session

Speaker

Claudio Emma (SLAC National Accelerator Laboratory)

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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Authors

Agostino Marinelli (SLAC National Accelerator Laboratory) Dr Alexander Knetsch (SLAC National Accelerator Laboratory) Brendan O'Shea (SLAC National Accelerator Laboratory) Dr Chaojie Zhang (University of California, Los Angeles) Claudio Emma (SLAC National Accelerator Laboratory) Douglas Storey (SLAC National Accelerator Laboratory) Kelly Swanson (SLAC National Accelerator Laboratory) Kirk Larsen (SLAC National Accelerator Laboratory) Rafi Hessami (SLAC National Accelerator Laboratory) River Robles (Stanford University)

Presentation materials

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