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Ozelis, J.P.

Paper Title Page
THP030 High Gradient Test Results of 325 MHz Single Spoke Cavity at Fermilab 851
 
  • G. Apollinari, I.G. Gonin, T.N. Khabiboulline, G. Lanfranco, A. Mukherjee, J.P. Ozelis, L. Ristori, G.V. Romanov, D.A. Sergatskov, R.L. Wagner, R.C. Webber
    Fermilab, Batavia
  • J.D. Fuerst, M.P. Kelly, K.W. Shepard
    ANL, Argonne
 
 

The High Intensity Neutrino Source (HINS) project represents the current effort at Fermilab to develop 60 MeV Proton/H- Linac as a front end for possible use in the Project X. Eighteen superconducting β=0.21 single spoke resonators (SSR), operating at 325 MHz, comprise the first stage of the HINS cold section. Two SSR cavities have now been fabricated in industry under this project and undergone surface treatment that is described here. We report the results of high gradient tests of the first SSR in the Vertical Test System (VTS). The cavity successfully achieved accelerating gradient of 13.5 MV/m; higher than the design operating gradient of 10 MV/m. The history of multipacting and conditioning during the VTS tests will be discussed. Experimental measurements of the cavity mechanical and vibration properties including Lorenz force detuning and measurements of X-rays resulting from field emission are also presented.