Sep 18 – 24, 2022
Hotel Hermitage, La Biodola Bay, Isola d'Elba, Italy
Europe/Rome timezone

Stable and high quality electron beams from staged laser and plasma wakefield accelerators

Sep 22, 2022, 10:15 AM
Sala Maria Luisa - Hotel Hermitage

Sala Maria Luisa - Hotel Hermitage

Invited talk Special Topic


Stefan Karsch (LMU Munich)


Using Laser-wakefield accelerated (LWFA) electron beams to drive a plasma-wakefield accelerator (PWFA) has been at the center of a multi-partner collaboration during the last few years. The motivation for doing so is two-fold: Firstly, current LWFA beams achieve peak currents beyond the capabilities of most dedicated PWFA facilites (with the exception of FACET-II), therefore our approach can act as a scalable, easily accessible toy model for high-current PWFA research. Secondly, while LWFA can yield >nC total charge beams with energy conversion factors >10 percent, but due to dephasing and the heating of the plasma electrons by the laser field their emittance is too large e.g. for driving an FEL. If the LWFA beam energy can by coverted efficiently in a cold PWFA stage to a high-quality beam, this will bring us a step closer to the dream of a compact ultralow-emittance beams source. We will show latest experimental results on the stability limits and potential emittance improvement for such a staged wakefield accelerator scenario, as well as laying out the next steps for the collaboration.

Primary authors

Ahmad Fahim Habib (SUPA, Department of Physics, University of Strathclyde, Glasgow, UK and Cockcroft Institute, Sci-Tech, Daresbury, UK.) Alexander Debus (Helmholtz-Zentrum Dresden-Rossendorf) Andreas Döpp (LMU Munich) Stefan Karsch (LMU Munich) Moritz Foerster (LMU Munich) Alastair Nutter (University of Strathclyde / HZDR) Albert Schletter Alberto Martinez de la Ossa (DESY) Alexander Knetsch (LOA) Arie Irman (Helmholtz Zentrum Dresden Rossendorf) Bernhard Hidding David Campbell Enes Travac Faran Irshad Florian Haberstroh (LMU Munich) Mr Gregor Schilling (LMU) Jurjen Couperus Cabadağ (Helmholtz-Zentrum Dresden - Rossendorf) Katinka von Grafenstein (Ludwig-Maximilians-Universität) Lena Kononenko (Ecole Polytechnique) Max Gilljohann (Ludwig-Maximilians-Universität München) Patrick Ufer (Helmholtz-Zentrum Dresden-Rossendorf) Richard Pausch (Helmholtz-Zentrum Dresden - Rossendorf) Susanne Schoebel (Helmholtz-Zentrum Dresden-Rossendorf) Sébastien Corde (Ecole Polytechnique) Thomas Heinemann (Uni Strathclyde / DESY) Ulrich Schramm (Helmholtz-Zentrum Dresden-Rossendorf) Yen-Yu Chang (Helmholtz Zentrum Dresden Rossendorf)

Presentation materials