Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe

SYPA: Symposium Plasma Induced Accelerators

SYPA 1: Plasma Induced Accelerators

SYPA 1.3: Hauptvortrag

Donnerstag, 31. März 2022, 10:00–10:30, Audimax

Hybrid plasma accelerators towards higher-quality electron beams — •S. Karsch^1,2, M. Foerster¹, A. Döpp^1,2, M. Gilljohann^1,3, J. Götzfried^1,2, K. v. Grafenstein¹, F. Haberstroh¹, J. Wenz¹, S. Corde³, O. Kononenko³, B. Hidding³, T. Heinemann^4,6, T. Kurz⁵, J. Couperus-Cabadag⁵, U. Schramm⁵, A. Debus⁵, and A. Martinez de la Ossa⁶ — ¹Ludwig-Maximilians-Universität München — ²Max-Planck-Institut für Quantenoptik — ³Laboratoire d'Optique Appliquee — ⁴University of Strathclyde — ⁵Helmholtz-Zentrum Dresden-Rossendorf — ⁶Deutsches Elektronen-Synchrotron

Laser wakefield acceleration (LWFA) and plasma wakefield acceleration (PWFA), are commonly treated as separate branches of high-gradient plasma- based acceleration. In combination they open a new path for generating ultralow-emittance electron beams from readily available laser sources. While LWFA can generate ultrahigh-current, highly relativistic electron bunches, their emittance is compromised by the strong plasma heating in the oscillating laser fields. By using LWFA-generated electron bunches to drive a wakefield in a secondary plasma, and employing cold injection schemes to provide a suitable witness bunch, we generate ultralow-emittance beams in a small laser lab in a scheme we call Hybrid LPWFA. I will present our experimental findings for the cases of externally and intenally injected witness bunches. They demonstate that LPWFA can yield more stable and higher quality beams than pure LWFA , which makes this approach very interesting for light source applications and as ultracold injectors.