Würzburg 2018 – wissenschaftliches Programm
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AKBP: Arbeitskreis Beschleunigerphysik
AKBP 5: New Accelerator Concepts II
AKBP 5.1: Vortrag
Dienstag, 20. März 2018, 16:30–16:45, NW-Bau - HS2
Hybrid plasma wakefield acceleration: Concept & preliminary results — •Thomas Kurz1,2, Thomas Heinemann3,4,5,6, Alexander Knetsch5, Jurjen Couperus1,2, Alexander Köhler1,2, Omid Zarini1,2, Bernhard Hidding3,4, Ralf Assmann5, Michael Bussmann1,2, Ulrich Schramm1,2, Alberto Martinez de la Ossa5, and Arie Irman1 — 1Helmholtz-Zentrum Dresden-Rossendorf, Dresden, Germany — 2Technische Universität Dresden, Dresden, Germany — 3University of Strathclyde, Glasgow, Scotland — 4Cockcroft Institute, Warington, United Kingdom — 5Deutsches Elektronen Synchrotron, Hamburg, Germany — 6Universität Hamburg, Hamburg, Germany
Plasma wakefield accelerators can be driven by either a powerful laser pulse (LWFA) or a high-current charged particle beam (PWFA). We combine both acceleration methods in a staged setup to efficiently exploit the advantages of each scheme. We present preliminary results of a proof of concept-experiment at the DRACO laser facility at Helmholtz-Zentrum Dresden-Rossendorf (HZDR). The LWFA stage (1st stage) generates ultra relativistic electron beams with peak currents exceeding 20kA via self truncated inonization injection (STII) out of a 3mm super sonic dopant (He+N) gas jet. These beams are sent into the second 3mm dopant (H+He) gas jet, driving plasma wakefields in the non-linear bubble regime. Thereby, injected electrons induced by the field ionization form a second electron beam (witness) that ideally exeeds the driving bunch (driver) quality in terms of energy and brightness.