Author: Mehrling, T.
Paper Title Page
MOPPA005 Laser-Wakefield Acceleration with External Bunch Injection at REGAE 254
 
  • J. Grebenyuk, K. Flöttmann
    DESY, Hamburg, Germany
  • T. Mehrling, J. Osterhoff
    Uni HH, Hamburg, Germany
 
  Funding: Helmholtz Alliance
Short and highly intense laser pulses focused into a gas target, ionise the gas and may excite large amplitude plasma waves that support extreme electric fields (>10 GV/m) for acceleration of charged particles. The REGAE facility at DESY, which provides 2-5 MeV of ~10 fs bunches, offers the unique possibility to study the external injection of pre-accelerated electron bunches from a conventional accelerator, and their subsequent acceleration in plasma wakefields. Simulations were performed with the particle-in-cell code OSIRIS, showing a wide variety of effects which can be explored in the future at REGAE. External controlled injection allows to study effects which require precise information about the beam quality, position and momentum at the initial point of injection. Topics of a particular interest are: bunch emittance growth suppression, controlled betatron motion, and longitudinal bunch compression.