Author: Kedzie, M.
Paper Title Page
TUPTB001 Demonstration of Niobium Tin in 218 MHz Low-Beta Quarter Wave Accelerator Cavity 388
 
  • T.B. Petersen, G. Chen, B.M. Guilfoyle, M. Kedzie, M.P. Kelly, T. Reid
    ANL, Lemont, Illinois, USA
  • G.V. Eremeev, S. Posen, B. Tennis
    Fermilab, Batavia, Illinois, USA
  
  A 218 MHz quar­ter wave nio­bium cav­ity has been fab­ri­cated for the pur­pose of demon­strat­ing Nb₃Sn tech­nol­ogy on a low-beta ac­cel­er­a­tor cav­ity. Nio­bium-tin has been es­tab­lished as a promis­ing next gen­er­a­tion SRF ma­te­r­ial, but de­vel­op­ment has fo­cused pri­mar­ily in high-beta el­lip­ti­cal cell cav­i­ties. This ma­te­r­ial has a sig­nif­i­cantly higher TC than nio­bium, al­low­ing for de­sign of higher fre­quency quar­ter wave cav­i­ties (that are sub­se­quently smaller) as well as for sig­nif­i­cantly low­ered cool­ing re­quire­ments (pos­si­bly lead­ing to cry­ocooler based de-signs). The fab­ri­ca­tion, ini­tial cold test­ing, and Nb₃Sn coat­ing are dis­cussed as well as test plans and de­tails of fu­ture ap­pli­ca­tions.  
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DOI • reference for this paper ※ doi:10.18429/JACoW-SRF2023-TUPTB001  
About • Received ※ 16 June 2023 — Revised ※ 23 June 2023 — Accepted ※ 27 June 2023 — Issue date ※ 08 July 2023
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TUPTB063 Fabrication Efforts Toward a Superconducting Rf Photo-Infector Quarter-Wave Cavity for Use in Low Emittance Injector Applications 568
 
  • C. Compton
    NSCL, East Lansing, Michigan, USA
  • K. Elliott, W. Hartung, J.D. Hulbert, S.H. Kim, T. Konomi, S.J. Miller, M.S. Patil, J.T. Popielarski, L. Popielarski, K. Saito, K. Witgen, T. Xu
    FRIB, East Lansing, Michigan, USA
  • M. Kedzie, M.P. Kelly, T.B. Petersen
    ANL, Lemont, Illinois, USA
  • J.W. Lewellen, J. Smedley
    SLAC, Menlo Park, California, USA
  
  Funding: * Work supported by the Department of Energy Contract DE-AC02- 76SF00515
The Fa­cil­ity for Rare Iso­tope Beams (FRIB), in col­lab­o­ra­tion with Ar­gonne Na­tional Lab­o­ra­tory (ANL) and Helmholtz-Zen­trum Dres­den-Rossendorf (HDZR), is work­ing on the de­sign and fab­ri­ca­tion of a photo-in­jec­tor cry­omod­ule; suit­able for op­er­a­tion as part of ac­cel­er­a­tor sys­tems at SLAC Na­tional Ac­cel­er­a­tor Lab­o­ra­tory. Pro­ject scope re­quires the fab­ri­ca­tion of two 185.7 MHz su­per­con­duct­ing, quar­ter-wave res­onators (QWR) based, in­jec­tor cav­i­ties. Cav­ity fab­ri­ca­tion will be com­pleted at FRIB with con­tracted ven­dors sup­port­ing sub­com­po­nent fab­ri­ca­tion and elec­tron-beam weld­ing. Fab­ri­ca­tion will use poly-crys­talline and large grain RRR nio­bium ma­te­ri­als. The cur­rent sta­tus of cav­ity fab­ri­ca­tion will be pre­sented in­clud­ing ma­te­r­ial pro­cure­ment, pro­to­type form­ing, and elec­tron-beam weld­ing de­vel­op­ment. 		 
DOI • reference for this paper ※ doi:10.18429/JACoW-SRF2023-TUPTB063  
About • Received ※ 17 June 2023 — Revised ※ 25 June 2023 — Accepted ※ 21 August 2023 — Issue date ※ 21 August 2023
Cite • reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)