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@ARTICLE{Christmann:631483,
      author       = {Christmann, Jan-Magnus and De Gersem, H. and von Tresckow,
                      M. and Aloev, Alexander and Mirza, Sajjad Hussain and
                      Pfeiffer, S. and Schlarb, H.},
      title        = {{F}inite element simulation of fast corrector magnets for
                      {PETRA} {IV}},
      journal      = {Journal of physics / Conference Series},
      volume       = {IPAC2023},
      number       = {8},
      issn         = {1742-6588},
      address      = {Bristol},
      publisher    = {IOP Publ.},
      reportid     = {PUBDB-2025-01995},
      pages        = {082010},
      year         = {2024},
      abstract     = {The new synchrotron light source PETRA IV at DESY will use
                      a fast orbit feedback system with hundreds of fast corrector
                      magnets to meet stringent orbit stability requirements.
                      These magnets are operated at high frequencies, creating
                      strong eddy currents that result in Joule losses and a time
                      delay between applied voltage and aperture field. User
                      experiments impose challenging requirements on beam
                      operation to preserve the point of the radiation source. To
                      meet the demanding feedback requirements, finite element
                      simulations are needed to understand the characteristics of
                      the corrector magnet. However, due to the small skin depths
                      at high frequencies and the laminated structure of the yoke,
                      these simulations need a very fine mesh and are thus very
                      costly. Therefore, we homogenize the laminated yoke which
                      reduces the computational effort but captures the eddy
                      current effects accurately. The reduction of simulation
                      times from several hours to a few minutes allows us to
                      conduct extensive studies of the eddy current losses and the
                      field quality of the magnets.},
      month         = {May},
      date          = {2023-05-07},
      organization  = {14th International Particle
                       Accelerator Conference, Venice (Italy),
                       7 May 2023 - 12 May 2023},
      cin          = {MSK},
      ddc          = {530},
      cid          = {I:(DE-H253)MSK-20120731},
      pnm          = {621 - Accelerator Research and Development (POF4-621) / GRK
                      2128 - GRK 2128: AccelencE: Beschleunigerphysik und
                      –technologie für Teilchenbeschleuniger mit
                      Energierückgewinnung (264883531)},
      pid          = {G:(DE-HGF)POF4-621 / G:(GEPRIS)264883531},
      experiment   = {EXP:(DE-H253)PETRAIV-20220101},
      typ          = {PUB:(DE-HGF)8 / PUB:(DE-HGF)16},
      doi          = {10.1088/1742-6596/2687/8/082010},
      url          = {https://bib-pubdb1.desy.de/record/631483},
}