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@INPROCEEDINGS{Bernat:364950,
      author       = {Bernat, Marcin and Eisel, Thomas and Iluk, Artur and
                      Kauschke, Marion and Kopp, Katharina and Streicher,
                      Branislav and Urbaniak, Marcin and Wójcik, Pawel},
      title        = {{SIS}100 {B}y-pass line - from the sketch into the tunnel},
      journal      = {IOP conference series / Materials science and engineering},
      volume       = {1327},
      number       = {1},
      issn         = {1757-8981},
      address      = {London [u.a.]},
      publisher    = {Institute of Physics},
      reportid     = {GSI-2026-00319},
      pages        = {012111 -},
      year         = {2025},
      abstract     = {In Darmstadt, Germany, the Facility for Antiproton and Ion
                      Research (FAIR) is presently under construction. One of the
                      most complex machines is the SIS100, a synchrotron with a
                      circumference of 1100 metres. Since the accelerating
                      structures for heavy ions are normal conducting and have to
                      be operated at room temperature a cryogenic by-pass line is
                      required to by-pass these warm components. The by-pass line
                      provides continuity around the synchrotron for liquid helium
                      and houses the superconducting bus bars for the electric
                      current. This 300m long by-pass line system has been
                      developed in close collaboration between GSI and the Wroclaw
                      University of Science and Technology (WUST). The design must
                      fulfil both the mechanical requirements of the overall
                      system in respect of interfaces to other components and the
                      demanding requirements for the arrangement of the bus bars.
                      The magnet system of SIS100 will be a fast-ramped from a few
                      hundred amperes to almost 14 kA within 0.5 seconds. The bus
                      bars must therefore be both stable against electromagnetic
                      forces and flexible to compensate for thermal shrinkage.
                      Following an intensiv design phase, the production
                      responsibilities were assigned to Kriosystem. After the
                      production of the first prototype, the complete series of 27
                      diverse by-pass line modules, consisting of 5 main layout,
                      was finalised. This article summarises some of the
                      challenges during design and production phase, tests which
                      were successfully carried out and, last but not least, the
                      installation in the tunnel. Furthermore, an outlook is given
                      on the upcoming final assembly and connection to the
                      magnets.},
      month         = {Jun},
      date          = {2024-06-22},
      organization  = {29TH INTERNATIONAL CRYOGENIC
                       ENGINEERING CONFERENCE INTERNATIONAL
                       CRYOGENIC MATERIALS CONFERENCE 2024,
                       Geneve (Switzerland), 22 Jun 2024 - 26
                       Jun 2024},
      cin          = {CRY},
      ddc          = {530},
      cid          = {I:(DE-Ds200)CRY-20121002OR224},
      pnm          = {6G12 - FAIR (GSI) (POF4-6G12)},
      pid          = {G:(DE-HGF)POF4-6G12},
      experiment   = {EXP:(DE-Ds200)FAIR-Facility},
      typ          = {PUB:(DE-HGF)16 / PUB:(DE-HGF)8},
      doi          = {10.1088/1757-899X/1327/1/012111},
      url          = {https://repository.gsi.de/record/364950},
}