Sep 15 – 21, 2019
Hotel Hermitage, La Biodola Bay, Isola d'Elba, Italy
Europe/Rome timezone

Energy resolved emittance measurements and chromatic emittance growth of laser-wakefield accelerated beams

Sep 16, 2019, 4:40 PM
20m
SML (HH)

SML

HH

Speaker

Paul Winkler (Center for Free-Electron Laser Science & Department of Physics, University of Hamburg, Hamburg, Germany and DESY)

Description

A crucial parameter for the demonstration of a laser-plasma driven free-electron laser is the electron beam emittance and its stability. Here, we show energy resolved emittance measurements of ionisation-injected plasma electron beams performed with both a conventional quadrupole scan and measured from single-shots. We show that the initial phase-space properties obtained from both methods deviate by less than 10 % and are constant over a narrow energy-band considered for the retrieval. The initial beam emittance is as low as 0.7 mm mrad. Finally, we demonstrate first measurements of chromatic emittance growth for laser-plasma accelerated electron beams.

Primary authors

Paul Winkler (Center for Free-Electron Laser Science & Department of Physics, University of Hamburg, Hamburg, Germany and DESY) Lars Hübner (Center for Free-Electron Laser Science & Department of Physics, University of Hamburg, Hamburg, Germany) Mr Björn Hubert (Center for Free-Electron Laser Science & Department of Physics, University of Hamburg, Hamburg, Germany) Soeren Jalas (Center for Free-Electron Laser Science and Department of Physics, University of Hamburg) Manuel Kirchen (Center for Free-Electron Laser Science & Department of Physics, University of Hamburg, Hamburg, Germany) Vincent Leroux (Center for Free-Electron Laser Science & Department of Physics, University of Hamburg, Hamburg, Germany) Philipp Messner (Center for Free-Electron Laser Science & Department of Physics, University of Hamburg, Hamburg, Germany) Matthias Schnepp (Center for Free-Electron Laser Science & Department of Physics, University of Hamburg, Hamburg, Germany) Maximilian Trunk (Center for Free-Electron Laser Science & Department of Physics, University of Hamburg, Hamburg, Germany) Christian Werle (Center for Free-Electron Laser Science & Department of Physics, University of Hamburg, Hamburg, Germany) Bernhard Schmidt (DESY) Andreas Maier (Center for Free-Electron Laser Science & Department of Physics, University of Hamburg, Hamburg, Germany)

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