A new trajectory measurement system for the CERN proton synchrotron

We describe the projected new trajectory measurement system for the CERN PS, currently under design, in which the trajectory of each particle bunch is calculated on the fly from a continuous high-rate stream of digitized PU signal samples. The system will store data for a full acceleration cycle. Multiple clients will then be able to select subsets of the data for further treatment and display. Using a prototype of the projected hardware, raw PU signals have been accumulated during the 2004 run and processed off-line, validating the algorithms for beam synchronization and calculation of trajectories for all current and known future beam types (subject to pick-up bandwidth limits) in the PS. Records of the system behavior, as implemented by the off-line processing chain and using real pre-recorded pick-up signals, will be shown.