The RFQ cavity  for the HIT facility  was delivered to GSI in the first quarter of 2005. RF-tests with an rf power up to 200 kW and a pulse width of 500 µsec could be carried out successfully after a short time of rfconditioning. A testbench for the RFQ cavity was constructed to allow for exact measurements of the output energy with the time of flight (ToF) method in addition to the beams tests at IAP Frankfurt . The test bench for the RFQ was assembled in the GSI Betriebshalle. A MUCIS ion source produces a proton beam at 8 keV with approximately 2 mA beam current as well as H3 +. Figure 2: comparison of simulated vs. measured beam energies for calibration of the design rf power level. The output energy of the protons depending on the voltfacto
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