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@INPROCEEDINGS{Lehrach:874035,
      author       = {Lehrach, Andreas and Büscher, Tobias and Hützen, Anna and
                      Engels, Ralf W. and Kannis, Chrysovalantis and Thomas,
                      Jahannes and Ji, Liangliang and Peter Rakitsis, T.},
      title        = {{P}olarized {B}eams from {L}aser-{P}lasma {A}ccelerators},
      reportid     = {FZJ-2020-01195},
      year         = {2019},
      abstract     = {The generation of polarized particle beams still relies on
                      conventional particle accelerators, which are typically very
                      large in scale and budget. Concepts based on laser-driven
                      wake-field acceleration have strongly been promoted during
                      the last decades. Despite many advances in the understanding
                      of fundamental physical phenomena, one largely unexplored
                      issue is how the particle spins are influenced by the huge
                      magnetic fields of the plasmas and, thus, how highly
                      polarized beams can be produced. The realization of
                      laser-plasma based accelerators for polarized beams is now
                      being pursued as a joint effort of groups from
                      Forschungszentrum Jülich (Germany), University of Crete
                      (Greece), and SIOM Shanghai (China) within the ATHENA
                      consortium. As a first step, we have theoretically
                      investigated and identified the mechanisms that influence
                      the beam polarization in laser-plasma accelerators. We then
                      carried out a set of Particle-in-cell simulations on the
                      acceleration of electrons and proton beams from gaseous and
                      foil targets. We could show that intense polarized beams may
                      be produced if pre-polarized targets of high density are
                      employed. Such polarized sources for electrons, protons,
                      deuterons and 3He ions are now being built in Jülich.
                      Proof-of-principle measurements at the (multi-)PW laser
                      facilities PHELIX (GSI Darmstadt) and SULF (Shanghai) are in
                      preparation.},
      month         = {Sep},
      date          = {2019-09-15},
      organization  = {4th European Advanced Accelerator
                       Concepts Workshop, La Biodola Bay,
                       Isola d'Elba (Italy), 15 Sep 2019 - 21
                       Sep 2019},
      subtyp        = {Invited},
      cin          = {IKP-4 / PGI-6 / IKP-2},
      cid          = {I:(DE-Juel1)IKP-4-20111104 / I:(DE-Juel1)PGI-6-20110106 /
                      I:(DE-Juel1)IKP-2-20111104},
      pnm          = {631 - Accelerator R $\&$ D (POF3-631)},
      pid          = {G:(DE-HGF)POF3-631},
      typ          = {PUB:(DE-HGF)6},
      url          = {https://juser.fz-juelich.de/record/874035},
}