A fast DSP-based phase-detector for closed-loop RF control in synchrotrons

A digital signal processor-based phase detector system is described whose performance is sufficient to implement a beam-phase control or other radio frequency closed-loop control systems which are typical for heavy ion synchrotrons. The delay caused by the system is less than 10 μs, and the accuracy of the detected phase is better than ±1° for unmodulated signals. Although beam-phase control is the target application, the system may also be used in totally different fields of application. A number of measurement results show the high potential of this solution.