A digital RF-stabilizer for time-of-flight measurements

We describe a device for the synchronization of the cyclotron radio frequency (RF, 5–50 MHz) with a detector signal (10–104 pulses/s), correlated with the beam particles. The digital device achieves a synchronization accuracy of down to ± 20 ps. For the synchronization control algorithm, the RF-Stabilizer measures the time-jitter which can also be used for conveniently tuning the cyclotron.