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@INPROCEEDINGS{Wood:642929,
      author       = {Wood, Jonathan Christopher and Björklund Svensson, Jonas
                      Halfdan and Chen, Ye Lining and Krivkova, Anna and Long,
                      Tianyun and Maier, Andreas and Scholz, Matthias and
                      Thévenet, Maxence and Wesch, Stephan and Wing, Matthew},
      title        = {{P}hysics {C}onsiderations for a {P}lasma {B}ooster {S}tage
                      for the {E}uropean {XFEL}},
      school       = {DESY},
      reportid     = {PUBDB-2025-05725},
      year         = {2025},
      abstract     = {The linac of the European XFEL accelerates high-quality
                      electron bunches up to a maximum of 17.5 GeV, which undergo
                      free-electron lasing in undulators at photon energies of up
                      to 30 keV. A plasma accelerator stage could be used to
                      significantly increase the electron bunch energy of the
                      European XFEL cheaply and over a short distance. Towards
                      this end we have developed models and performed the first
                      beamtimes at the European XFEL in order to understand
                      whether a twin-bunch structure suitable for plasma
                      acceleration can be generated at the photocathode, then be
                      accelerated and shaped in the following linac sections and
                      bunch compressors. Promising first results from these
                      studies will be presented alongside first considerations of
                      a suitable plasma source, which must be scalable to high
                      average powers. The high current (~5 kA) of an XFEL-derived
                      plasma accelerator driver generates challenges for such a
                      source, for example from ion motion and beam-induced
                      ionisation. These effects will be explored and mitigation
                      strategies proposed. Potential use cases for a plasma
                      booster stage at the European XFEL will be presented.},
      month         = {Sep},
      date          = {2025-09-21},
      organization  = {7th European Advanced Accelerator
                       Conference, Elba (Italy), 21 Sep 2025 -
                       27 Sep 2025},
      cin          = {$HH_FH_FTX_AS$ / MPL / MXL},
      cid          = {$I:(DE-H253)HH_FH_FTX_AS-20210421$ /
                      I:(DE-H253)MPL-20120731 / I:(DE-H253)MXL-20160301},
      pnm          = {621 - Accelerator Research and Development (POF4-621) /
                      6G13 - Accelerator of European XFEL (POF4-6G13)},
      pid          = {G:(DE-HGF)POF4-621 / G:(DE-HGF)POF4-6G13},
      experiment   = {EXP:(DE-H253)FLASHForward-20150101 /
                      EXP:(DE-H253)XFEL-Exp-20150101},
      typ          = {PUB:(DE-HGF)24},
      url          = {https://bib-pubdb1.desy.de/record/642929},
}