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@ARTICLE{Fuchs:1018648,
      author       = {Fuchs, M. and Shadwick, B. A. and Vafaei-Najafabadi, N. and
                      Thomas, A. G. R. and Andonian, G. and Büscher, M. and
                      Lehrach, A. and Apsimon, O. and Xia, G. and Filippetto, D.
                      and Schroeder, C. B. and Downer, M. C.},
      title        = {{S}nowmass {W}hitepaper {AF}6: {P}lasma-{B}ased {P}article
                      {S}ources},
      journal      = {Contribution to Snowmass 2021},
      publisher    = {arXiv},
      reportid     = {FZJ-2023-04951},
      year         = {2022},
      abstract     = {High-brightness beams generated by particle sources based
                      on advanced accelerator concepts have the potential to
                      become an essential part of future accelerator technology.
                      High-gradient accelerators can generate and rapidly
                      accelerate particle beams to relativistic energies while
                      minimizing irreversible detrimental effects to the beam
                      brightness that occur at low beam energies. Due to the high
                      accelerating gradients, these novel accelerators are also
                      significantly more compact than conventional technology. The
                      beam parameters of these particle sources are largely
                      determined by the injection and subsequent acceleration
                      processes. While there has been significant progress crucial
                      parameters that are required for a future collider or more
                      near-term applications, including X-ray free-electron lasers
                      (XFELs), such as a sufficiently small energy spread and
                      small emittance for bunches with a high charge and at high
                      pulse repetition rate. Major research and development
                      efforts are required to realize these approaches for a
                      front-end injector for a future collider in order to address
                      these limitations. In particular, this includes methods to
                      control and manipulate the phase-space and spin
                      degrees-of-freedom of ultrashort LWFA electron bunches with
                      high accuracy, methods that increase the laser-to-electron
                      beam efficiency and increased repetition rate. This also
                      includes the development of high-resolution diagnostics,
                      such as full 6D phase-space measurements, beam polarimetry
                      and high-fidelity simulation tools. A further increase in
                      beam luminosity can be achieve through emittance damping.
                      For future colliders, the damping rings might be replaced by
                      a substantially more compact plasma-based approach. Here,
                      plasma wigglers are used to achieve similar damping
                      performance but over a two orders of magnitude reduced
                      length.},
      keywords     = {Accelerator Physics (physics.acc-ph) (Other) / Plasma
                      Physics (physics.plasm-ph) (Other) / FOS: Physical sciences
                      (Other)},
      cin          = {IKP-4 / PGI-6},
      cid          = {I:(DE-Juel1)IKP-4-20111104 / I:(DE-Juel1)PGI-6-20110106},
      pnm          = {621 - Accelerator Research and Development (POF4-621)},
      pid          = {G:(DE-HGF)POF4-621},
      typ          = {PUB:(DE-HGF)25},
      doi          = {10.48550/arXiv.2203.08379},
      url          = {https://juser.fz-juelich.de/record/1018648},
}