Tune Measurement System of the SKIF Booster

Tune measurement system developed in Budker Institute of Nuclear Physics for the Booster of the SKIF project provides fast and accurate measurements of fractional part of betatron tunes during Booster acceleration cycle. Resonance excitation of betatron oscillations with help of radio frequency (RF) pulses feeding to the kiker electrodes is used in the system. The minimal tune measurement time is 1.3 ms, which allows having tunes measurement data for each phase of the Booster accelerating cycle. The system can perform up to 256 measurements during 400 ms time interval of Booster energy ramping. The tune measurement accuracy is better than 0.001 f 0 , where f 0 is Booster revolution frequency.