Author: Tiskumara, J.K.
Paper Title Page
MOPAB384 Nb3Sn Coating of Twin Axis Cavity for Accelerator Applications 1175
 
  • J.K. Tiskumara, S.U. De Silva, J.R. Delayen, H. Park
    ODU, Norfolk, Virginia, USA
  • J.R. Delayen, H. Park, U. Pudasaini, C.E. Reece
    JLab, Newport News, Virginia, USA
  • G.V. Eremeev
    Fermilab, Batavia, Illinois, USA
 
  Funding: Research supported by DOE Office of Science Accelerator Stewardship Program Award DE- SC0019399. Partially authored by Jefferson Science Associates under contract no. DEAC0506OR23177
A Su­per­con­duct­ing twin axis cav­ity con­sist­ing of two iden­ti­cal beam pipes that can ac­cel­er­ate and de­cel­er­ate beams within the same struc­ture has been pro­posed for the En­ergy Re­cov­ery Linac (ERL) ap­pli­ca­tions. There are two nio­bium twin axis cav­i­ties at JLab fab­ri­cated with the in­ten­tion of later Nb3Sn coat­ing and now we are pro­gress­ing to coat them using vapor dif­fu­sion method. Nb3Sn is a po­ten­tial al­ter­nate ma­te­r­ial for re­plac­ing Nb in SRF cav­i­ties for bet­ter per­for­mance and re­duc­ing op­er­a­tional costs. Be­cause of ad­vanced geom­e­try, larger sur­face area, in­creased num­ber of ports and hard to reach areas of the twin axis cav­i­ties, the usual coat­ing ap­proach de­vel­oped for typ­i­cal el­lip­ti­cal sin­gle-axis cav­i­ties must be eval­u­ated and re­quires to be ad­justed. In this con­tri­bu­tion, we re­port the first re­sults from the coat­ing of a twin axis cav­ity and dis­cuss cur­rent chal­lenges with an out­look for the fu­ture.
 
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2021-MOPAB384  
About • paper received ※ 19 May 2021       paper accepted ※ 24 May 2021       issue date ※ 27 August 2021  
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