The diagnostic and control system for the converted MP-tandem at Munich

The diagnostic and control system for the Munich MP-Tandem is based on two bundles of acrylic light pipes running in the column structure from both ends of the tank to the dead sections and to the terminal. These light guides transmit all control signals for lenses, beam steerers, foil strippers and variable apertures as well as the readings of beam currents, charging currents, column currents, ionization currents, pump currents and voltages, and alternator frequencies. Details of the mechanical and electronic design are presented. Before the system has been installed, parts of it have passed various high voltage and radiation tests. It has gone in operation in june 1976. Operating experiences and test results are reported