SRF Accelerating Modules Repair at DESY

Kostin, Denis; Krupka, Nicolay; Lilje, Lutz; Horst, Birte van der; Schmökel, Manuela; Schaffran, Joern; Weise, Hans; Sievers, Sven Thorsten; Reschke, Detlef; Saegebarth, Steven; Eschke, Juergen; Steinhau-Kuehl, Nicolai; Schilling, Patrick; Schalwat, Marco; Jensch, Kay; Muhs, Andrea; Wiencek, Mateusz

Poster

PUBDB-2022-01159

SRF Accelerating Modules Repair at DESY

Kostin, D. (Corresponding author)DESY* ; Reschke, D.DESY* ; Sievers, S. T.DESY* ; Wiencek, M.DESY* ; Lilje, L.DESY* ; Muhs, A.DESY* ; Krupka, N.DESY* ; Saegebarth, S.DESY* ; Schaffran, J.DESY* ; Schalwat, M.DESY* ; Schilling, P.DESY* ; Schmökel, M. (Corresponding author)DESY* ; Steinhau-Kuehl, N. (Corresponding author)DESY* ; Horst, B. v. d.DESY* ; Jensch, K.DESY* ; Eschke, J.DESY* ; Weise, H.DESY*

2021

2021 International Conference of RF Superconductivity, SRF´21, Facility for Rare Isotope Beams at Michigan State University, USA, 28 Jun 2021 - 2 Jul 2021

Abstract: Eight SRF cavities assembled in an accelerating module represent a building block of the particle linear accelerator based onTESLA 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. Currentlytwo European XFEL modules and two FLASH ones underwent reassembly procedures. The repair was not immediately successfulon every of these modules and re‐iterations did follow. The degradation causes were investigated. SRF modules were tested onboth test‐stands at DESY: AMTF and CMTB. The results of the described actions are presented and discussed.

Note: The poster can also be found here:https://indico.frib.msu.edu/event/38/attachments/158/1234/TUPTEV011_poster.pdfand the paper is published here:https://srf2021.vrws.de/papers/tuptev011.pdf

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Appears in the scientific report 2021