Speaker
Description
We present the results obtained with the implementation of all-optical guiding technique in the ELBA and ALFA laser Wakefield accelerators at ELI Beamlines. In ELBA, we demonstrate for the first time all-optical guiding starting from a single laser pulse (L3-HAPLS, 15 J, 30 fs), enabling electron beam energy up to 5 GeV. This scheme has been experimentally tested up to 8 J at 3.3 Hz repetition rate. Furthermore, we demonstrated two new injection techniques in guided LWFA, that have been used to unambiguously show dephasing-mitigated multi-GeV electron beams. The upgraded electron beam parameters have been offered to ELBA users for laser-electron collider experiments and laser-driven muon production. In ALFA, we achieved all-optical laser guiding at 1 kHz, using 10 mJ 15 fs ionization laser (FSYNC) to drive a 40 mJ 15 fs laser (L1-Allegra).
| Working group | WG1 |
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