Contribution to a conference proceedings

GSI-2026-00260

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png PEEK-Polymer as a vacuum-window in high power rf-couplers

Braun, P. (Corresponding author) ; Podlech, H.GSI* ; Storch, J. ; Kümpel, K.

2025
JACoW Publishing

Please use a persistent id in citations: doi:10.18429/JACOW-IPAC2025-TUPS041  doi:10.15120/GSI-2026-00260

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.

Keyword(s): Accelerator Physics ; mc4-hadron-accelerators - MC4: Hadron Accelerators ; MC4.A08 - MC4.A08 Linear Accelerators

Note: Published by JACoW Publishing under the terms of the Creative Commons Attribution 4.0 license

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Contributing Institute(s):

1. Helmholtz ForschAkad Hess. f. FAIR, HFHF (FHF)

Research Program(s):

1. 621 - Accelerator Research and Development (POF4-621) (POF4-621)
2. Accelerator physics (HFHF project) (I:(DE-Ds200)HFHF-ACC) (I:(DE-Ds200)HFHF-ACC)

Experiment(s):

1. no experiment theory work (theory)

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