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 /spl mu/s, and the accuracy of the detected phase is better than /spl plusmn/1/spl deg/ 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.