JACoW is a publisher in Geneva, Switzerland that publishes the proceedings of accelerator conferences held around the world by an international collaboration of editors.
TY - CONF AU - Kostin, D. AU - Eschke, J. AU - Jensch, K. AU - Krupka, N. AU - Lilje, L. AU - Muhs, A. AU - Reschke, D. AU - Saegebarth, S. AU - Schaffran, J. AU - Schalwat, M. AU - Schilling, P. AU - Schmökel, M. AU - Sievers, S. AU - Steinhau-Kühl, N. AU - Vogel, E. AU - Weise, H. AU - Wiencek, M. AU - van der Horst, B. ED - Saito, Kenji ED - Xu, Ting ED - Sakamoto, Naruhiko ED - Lesage, Ana ED - Schaa, Volker R.W. TI - SRF Accelerating Modules Repair at DESY J2 - Proc. of SRF2021, East Lansing, MI, USA, 28 June-02 July 2021 CY - East Lansing, MI, USA T2 - International Conference on RF Superconductivity T3 - 20 LA - english AB - Eight SRF cavities assembled in an accelerating module represent a building block of the particle linear accelerator based on TESLA SRF technology. DESY has two machines, European XFEL and FLASH. Both use almost same module and cavity types. During the module assembly many factors can deteriorate the cavity performance and cause a need for a repair action. Currently two European XFEL modules and two FLASH ones underwent reassembly procedures. The repair was not immediately successful on every of these modules and re-iterations did follow. The degradation causes were investigated. SRF modules were tested on both test-stands at DESY: AMTF and CMTB. The results of the described actions are presented and discussed. PB - JACoW Publishing CP - Geneva, Switzerland SP - 508 EP - 511 KW - cavity KW - FEL KW - SRF KW - linac KW - operation DA - 2022/10 PY - 2022 SN - 2673-5504 SN - 978-3-95450-233-2 DO - doi:10.18429/JACoW-SRF2021-TUPTEV011 UR - https://jacow.org/srf2021/papers/tuptev011.pdf ER -