Author: List, J.
Paper Title Page
THPO107 High Power Coupler R&D for Superconducting CH-cavities 920
SPWR025   use link to see paper's listing under its alternate paper code  
 
  • J. List, K. Aulenbacher, W.A. Barth, F.D. Dziuba, V. Gettmann, T. Kürzeder, M. Miski-Oglu
    HIM, Mainz, Germany
  • K. Aulenbacher
    IKP, Mainz, Germany
  • W.A. Barth, M. Heilmann, J. Salvatore, A. Schnase, S. Yaramyshev
    GSI, Darmstadt, Germany
  • M. Basten, M. Busch, H. Podlech, M. Schwarz
    IAP, Frankfurt am Main, Germany
  
  The up­com­ing de­mands of the fu­ture re­search pro­grams at GSI ex­ceed the tech­ni­cal op­por­tu­ni­ties of the ex­ist­ing UNI­ver­sal Lin­ear AC­cel­er­a­tor (UNI­LAC). Be­sides, the ma­chine will be ex­clu­sively used as an in­jec­tor for FAIR (Fa­cil­ity for An­tipro­ton and Ion Re­search) pro­vid­ing high power heavy ion beams at a low rep­e­ti­tion rate for in­jec­tion into the syn­chro­tron. A new ded­i­cated su­per­con­duct­ing (sc) con­tin­u­ous wave (cw) Linac is cru­cial to keep the re­search pro­gram com­pet­i­tive. The first part of the cw-linac, com­pris­ing a 217 MHz multi gap Cross­bar-H-mode (CH) cav­ity sur­rounded by two sc so­le­noids in­side a cryo­stat, al­ready served as a pro­to­type demon­strat­ing re­li­able op­er­abil­ity in a re­al­is­tic ac­cel­er­a­tor en­vi­ron­ment. A suf­fi­cient high power RF-cou­pling con­cept is needed to feed this newly de­vel­oped cw-RF cav­ity with up to 5 kW of RF-power. A high power cou­pler test stand was re­cently built to pro­vide for a test­ing en­vi­ron­ment; fur­ther up­grade mea­sures of this test area are fore­seen. This con­tri­bu­tion deals with the re­cent cou­pler R&D for the demon­stra­tor set up. Be­sides sim­u­la­tions of ther­mal losses at the cou­pler (in­side the RF-cav­ity) will be shown as well.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-LINAC2018-THPO107  
About • paper received ※ 12 September 2018       paper accepted ※ 19 September 2018       issue date ※ 18 January 2019  
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