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@PHDTHESIS{Niedermayer:360219,
      author       = {Niedermayer, Philipp},
      othercontributors = {Franchetti, Giuliano and Ratzinger, Ulrich and Najmudin,
                          Zulfikar},
      title        = {{T}ransverse excitation for beam diagnostics and slow
                      extraction from synchrotrons},
      school       = {Goethe Uni Frankfurt},
      type         = {Dissertation},
      address      = {Frankfurt am Main},
      publisher    = {Universitätsbibliothek Johann Christian Senckenberg},
      reportid     = {GSI-2025-00816},
      pages        = {196},
      year         = {2025},
      note         = {Dissertation, Goethe Uni Frankfurt, 2025},
      abstract     = {Transverse excitation is a key method required for the
                      operation of synchrotrons, a type of circular particle
                      accelerator suitable for a wide range of applications. The
                      excitation is essential to control the beam: First, it is
                      used in the context of beam diagnostics to enable monitoring
                      of the accelerator's working point (tune). This is required
                      to setup the machine and to avoid unintentional beam losses.
                      Second, it is used in the context of resonant slow
                      extraction to drive and control the extraction of particles
                      from the accelerator. This method referred to as Radio
                      Frequency Knock Out (RF-KO) enables the delivery of defined
                      beam intensities for experiments or medical treatments.
                      Transverse excitation is performed by creating a
                      time-dependent electromagnetic field through which particles
                      are deflected on each subsequent turn in the synchrotron. To
                      generate this dipolar field with frequencies in the radio
                      frequency (RF) domain, signal generators, amplifiers and
                      stripline kickers (exciters) are utilized.This thesis
                      comprises a detailed study of the method of transverse
                      excitation. Special focus is placed on the nonlinear beam
                      dynamics, the composition and generation of the excitation
                      signal and the peripheral systems (detectors, exciters). An
                      excitation system for tune diagnostics and one for resonant
                      slow extraction is developed and used to study different
                      methods for transverse excitation experimentally. Particle
                      tracking simulations are carried out to gain a detailed
                      understanding of the excitation process. Based on the
                      findings from experiments and simulations, recommendations
                      are given for the improved application of excitation
                      techniques. Two new excitation methods for resonant slow
                      extraction are developed, studied and compared to other
                      commonly applied methods. The sensible application of these
                      excitation techniques is essential to improve the quality of
                      the particle beam and the operation and performance of the
                      synchrotron.},
      cin          = {HES / BEA / RRF},
      cid          = {I:(DE-Ds200)HES-20160901OR377 /
                      I:(DE-Ds200)BEA-20051214OR061 /
                      I:(DE-Ds200)RRF-20051214OR059},
      pnm          = {621 - Accelerator Research and Development (POF4-621) /
                      I.FAST - Innovation Fostering in Accelerator Science and
                      Technology (101004730)},
      pid          = {G:(DE-HGF)POF4-621 / G:(EU-Grant)101004730},
      experiment   = {$EXP:(DE-Ds200)External_experiment-20200803$ /
                      $EXP:(DE-Ds200)Experiment_without_proposal_number-20200803$},
      typ          = {PUB:(DE-HGF)11},
      urn          = {urn:nbn:de:hebis:30:3-913001},
      url          = {https://repository.gsi.de/record/360219},
}