Experiences with the Fermilab HINS 325 MHz RFQ
  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 RFQ 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 first reported. 
R. C. Webber, T. Khabiboulline, R. Madrak, G. Romanov, V. Scarpine, J.   Steimel, D. Wildman (Fermilab)
physics.acc-ph