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Madrak, R.L.

Paper Title Page
TUP048 Experiences with the Fermilab HINS 325 MHz RFQ 515
 
  • R.C. Webber, T.N. Khabiboulline, R.L. Madrak, G.V. Romanov, V.E. Scarpine, J. Steimel, D. Wildman
    Fermilab, Batavia
 
 

The Fermilab High Intensity Neutrino Source program has built and commissioned a pulsed 325 MHz RFQ. The RFQ has successfully accelerated a proton beam at the design RF power. Experiences encountered during RFQ conditioning, including the symptoms and cause of a run-away detuning problem, and the first beam results are reported.

 
THP031 First High Gradient Test Results of a Dressed 325 MHz Superconducting Single Spoke Resonator at Fermilab 821
 
  • R.C. Webber, T.N. Khabiboulline, R.L. Madrak, T.H. Nicol, L. Ristori, W.M. Soyars, R.L. Wagner
    Fermilab, Batavia
 
 

A new superconducting RF cavity test facility has been commissioned at Fermilab in conjunction with first tests of a 325 MHz, β = 0.22 superconducting single-spoke cavity dressed with a helium jacket and prototype tuner. The facility is described and results of full gradient, CW cavity tests with a high Qext drive coupler are reported. Sensitivities to Q disease and externally applied magnetic fields were investigated. Results are compared to bare cavity results obtained prior to hydrogen degassing and welding into the helium jacket.