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@INPROCEEDINGS{Telawane:580554,
      author       = {Telawane, S. and Schöps, A. and Neumann, Paul and Ramm, T.
                      and Tischer, M. and Vagin, P.},
      title        = {{A} {L}aser {H}eater {U}ndulator for {FLASH}2020+},
      journal      = {Journal of physics / Conference Series},
      volume       = {2380},
      number       = {1},
      issn         = {1742-6588},
      address      = {Bristol},
      publisher    = {IOP Publ.},
      reportid     = {PUBDB-2023-01311},
      pages        = {012028},
      year         = {2023},
      abstract     = {Space charge induced micro bunch instabilities, amplified
                      in cascadedbunch compression stages, spoil the phase space
                      of compressed bunches and leadto unstable seeding. To
                      “heat” up the bunch with an external laser and induce
                      anuncorrelated energy spread to suppresses the micro
                      bunching instabilities, a shortundulator will be installed
                      in front of the first compression chicane. The undulator
                      hasa planar hybrid magnet structure with 43 mm period
                      length, 11 full periods, 22 mmminimum gap and a deflection
                      parameter K of 1.52 (K = (eBλ$_u$) / (2$π$m$_{ec}$), withB
                      - max. magnetic field amplitude, λ$_u$ - period length) to
                      match the 534 nm laserwavelength at 146 MeV beam energy. The
                      paper describes the undulator’s compactdesign, its control
                      system and results of magnetic measurements and tuning.},
      month         = {Mar},
      date          = {2022-03-28},
      organization  = {14th International Conference on
                       Synchrotron Radiation Instrumentation,
                       Hamburg (Germany), 28 Mar 2022 - 1 Apr
                       2022},
      cin          = {FS-US / ZM1},
      ddc          = {530},
      cid          = {I:(DE-H253)FS-US-20120731 / I:(DE-H253)ZM1-20120731},
      pnm          = {631 - Matter – Dynamics, Mechanisms and Control
                      (POF4-631) / 6G2 - FLASH (DESY) (POF4-6G2)},
      pid          = {G:(DE-HGF)POF4-631 / G:(DE-HGF)POF4-6G2},
      experiment   = {EXP:(DE-H253)FLASH2020p-20221201},
      typ          = {PUB:(DE-HGF)16 / PUB:(DE-HGF)8},
      doi          = {10.1088/1742-6596/2380/1/012028},
      url          = {https://bib-pubdb1.desy.de/record/580554},
}