Author: Gorgi Zadeh, S.
Paper Title Page
MOPAB376 Design and Fabrication of a Quadrupole Resonator for SRF R&D 1158
 
  • R. Monroy-Villa, W. Hillert, M. Wenskat
    University of Hamburg, Institut für Experimentalphysik, Hamburg, Germany
  • S. Gorgi Zadeh, P. Putek
    Rostock University, Faculty of Computer Science and Electrical Engineering, Rostock, Germany
  • R. Monroy-Villa, D. Reschke, J.H. Thie
    DESY, Hamburg, Germany
 
  As Nb su­per­con­duct­ing ra­dio-fre­quency (SRF) cav­i­ties are now ap­proach­ing the the­o­ret­i­cal lim­its of the ma­te­r­ial, a va­ri­ety of dif­fer­ent sur­face treat­ments have been de­vel­oped to fur­ther im­prove their per­for­mance; al­though no fully un­der­stood the­ory is yet avail­able. Small su­per­con­duct­ing sam­ples are stud­ied to char­ac­ter­ize their ma­te­r­ial prop­er­ties and their evo­lu­tion under dif­fer­ent sur­face treat­ments. To study the RF prop­er­ties of such sam­ples under re­al­is­tic SRF con­di­tions at low tem­per­a­tures, a test cav­ity called quadru­pole res­onator (QPR) is cur­rently being fab­ri­cated. In this work we re­port the sta­tus of the QPR at Uni­ver­sität Ham­burg in col­lab­o­ra­tion with DESY. Our de­vice is based on the QPRs op­er­ated at CERN and at HZB and its de­sign will allow for test­ing sam­ples under cav­ity-like con­di­tions, i.e., at tem­per­a­tures be­tween 2K and 8 K, under mag­netic fields up to 120mT and with op­er­at­ing fre­quen­cies of 433 MHz, 866 MHz and 1300 MHz. Fab­ri­ca­tion tol­er­ance stud­ies on the elec­tro­mag­netic field dis­tri­b­u­tions and sim­u­la­tions of the sta­tic de­tun­ing of the de­vice, to­gether with a sta­tus re­port on the cur­rent man­u­fac­tur­ing process, will be pre­sented.  
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DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2021-MOPAB376  
About • paper received ※ 26 May 2021       paper accepted ※ 09 June 2021       issue date ※ 17 August 2021  
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