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Proceedings Article

Merging conventional and laser wakefield accelerators

[+] Author Affiliations
Benno Zeitler, Irene Dornmair, Tim Gehrke, Mikheil Titberidze, Andreas R. Maier, Bernhard Hidding, Florian Grüner

Univ. Hamburg (Germany)

Klaus Flöttmann

Deutsches Elektronen-Synchrotron (Germany)

Proc. SPIE 8779, Laser Acceleration of Electrons, Protons, and Ions II; and Medical Applications of Laser-Generated Beams of Particles II; and Harnessing Relativistic Plasma Waves III, 877904 (May 7, 2013); doi:10.1117/12.2019339
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From Conference Volume 8779

  • Laser Acceleration of Electrons, Protons, and Ions II; and Medical Applications of Laser-Generated Beams of Particles II; and Harnessing Relativistic Plasma Waves III
  • Eric Esarey; Carl B. Schroeder; Wim P. Leemans; Kenneth W. D. Ledingham; Dino A. Jaroszynski
  • Prague, Czech Republic | April 15, 2013

abstract

Laser wake field accelerators deliver high quality electron beams in terms of emittance and bunch length. However, there are also parameters which cannot compete with conventional machines, namely the spectral width as well as the shot-to-shot stability in terms of energy and pointing. The bunch formation in this new type of accelerators happens in a highly non-linear plasma wave and is a statistical process based on Coulomb scattering. However, there is no direct access to the injection mechanism of electrons into that plasma wake field. Injecting a well-characterized electron beam produced by a conventional accelerator into a plasma wake field could help to solve this problem: Measuring the difference in the electron spectrum in such a pump-probe type experiment should yield the possibility to directly reconstruct the electric field distribution. From that point on, comparisons with theoretical models as well as results from particle-in-cell (PIC) codes could lead to a better understanding of the injection process. At DESY in Hamburg there is a conventional accelerator suited for such a type of experiment: the Relativistic Electron Gun for Atomic Exploration (REGAE). We report on the status of the beam line extension to REGAE and the plans of the external injection project, with the goal to directly measure the wake field and further improve the stability of laser wake field accelerators. © (2013) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Citation

Benno Zeitler ; Irene Dornmair ; Tim Gehrke ; Mikheil Titberidze ; Andreas R. Maier, et al.
" Merging conventional and laser wakefield accelerators ", Proc. SPIE 8779, Laser Acceleration of Electrons, Protons, and Ions II; and Medical Applications of Laser-Generated Beams of Particles II; and Harnessing Relativistic Plasma Waves III, 877904 (May 7, 2013); doi:10.1117/12.2019339; http://dx.doi.org/10.1117/12.2019339


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