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@INPROCEEDINGS{Braun:364081,
      author       = {Braun, Peter and Podlech, Holger and Storch, Julius and
                      Kümpel, Klaus},
      title        = {{PEEK}-{P}olymer as a vacuum-window in high power
                      rf-couplers},
      publisher    = {JACoW Publishing},
      reportid     = {GSI-2026-00260},
      pages        = {1521-1523},
      year         = {2025},
      note         = {Published by JACoW Publishing under the terms of the
                      Creative Commons Attribution 4.0 license},
      abstract     = {PEEK is an advanced polymer known for its exceptional
                      mechanical strength, thermal stability, and radiation
                      resistance, making it a promising candidate for applications
                      in extreme environments. This study explores the viability
                      of PEEK as a vacuum window material in high-power radio
                      frequency (RF) couplers. Traditionally, materials such as
                      ceramics are employed for this purpose; however, they are
                      costly to manufacture and impose limitations during the
                      design process. PEEK offers additional advantages, including
                      the possibility of additive manufacturing, which enables the
                      integration of cooling channels for efficient thermal
                      management. The research evaluates PEEK's electrical,
                      thermal, and mechanical properties under conditions typical
                      of high-power RF couplers, such as vacuum stability,
                      RF-induced heating, and electromagnetic transparency. At the
                      Institute for Applied Physics (IAP), PEEK is tested as a
                      vacuum window material in high-power experiments up to 35
                      kW. Following these tests, the material is analyzed to
                      assess its performance and suitability for RF applications.},
      month         = {Jun},
      date          = {2025-06-01},
      organization  = {16th International Particle
                       Accelerator Conference, Taipei
                       (Taiwan), 1 Jun 2025 - 6 Jun 2025},
      keywords     = {Accelerator Physics (Other) / mc4-hadron-accelerators -
                      MC4: Hadron Accelerators (Other) / MC4.A08 - MC4.A08 Linear
                      Accelerators (Other)},
      cin          = {FHF},
      cid          = {I:(DE-Ds200)FHF-20200605OR451},
      pnm          = {621 - Accelerator Research and Development (POF4-621) /
                      Accelerator physics (HFHF project) (I:(DE-Ds200)HFHF-ACC)},
      pid          = {G:(DE-HGF)POF4-621 / I:(DE-Ds200)HFHF-ACC},
      experiment   = {$EXP:(DE-Ds200)no_experiment-20200803$},
      typ          = {PUB:(DE-HGF)8},
      doi          = {10.18429/JACOW-IPAC2025-TUPS041},
      url          = {https://repository.gsi.de/record/364081},
}