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@PROCEEDINGS{Bscher:862982,
      author       = {Büscher, Markus and Böker, Jürgen and Engels, Ralf and
                      Engin, Ilhan and Gebel, Ralf and Hützen, Anna and Lehrach,
                      Andreas and Pukhov, Alexander and Rakitzis, Peter and
                      Sofikitis, Dimitris and Thomas, Johannes},
      title        = {{P}olarized {P}roton {B}eams {F}rom {L}aser-{I}nduced
                      {P}lasmas},
      publisher    = {JACoW Publishing, Geneva, Switzerland},
      reportid     = {FZJ-2019-03135},
      year         = {2019},
      abstract     = {Laser-driven particle acceleration has undergone impressive
                      progress in recent years. Nevertheless, one unexplored issue
                      is how the particle spins are influenced by the huge
                      magnetic fields inherently present in the plasmas. In the
                      framework of the JuSPARC (Jülich Short-Pulse Particle and
                      Radiation Center) facility and of the ATHENA consortium, the
                      laser-driven generation of polarized particle beams in
                      combination with the development of advanced target
                      technologies is being pursued. In order to predict the
                      degree of beam polarization from a laser-driven plasma
                      accelerator, particle-in-cell simulations including spin
                      effects have been carried out for the first time. For this
                      purpose, the Thomas-BMT equation, describing the spin
                      precession in electromagnetic fields, has been implemented
                      into the VLPL (Virtual Laser Plasma Lab) code. A crucial
                      result of our simulations is that a target containing
                      pre-polarized hydrogen nuclei is needed for producing highly
                      polarized relativistic proton beams. For the experimental
                      realization, a polarized HCl gas-jet target is under
                      construction the Forschungszentrum Jülich where the degree
                      of hydrogen polarization is measured with a Lamb-shift
                      polarimeter. The final experiments, aiming at the first
                      observation of a polarized particle beam from
                      laser-generated plasmas, will be carried out at the 10 PW
                      laser system SULF at SIOM/Shanghai.},
      month         = {Oct},
      date          = {2018-10-20},
      organization  = {13th International Computational
                       Accelerator Physics Conference, Key
                       Wesr (USA), 20 Oct 2018 - 24 Oct 2018},
      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)26},
      doi          = {10.18429/JACOW-ICAP2018-SUPAF05},
      url          = {https://juser.fz-juelich.de/record/862982},
}