HV DC Injectors for Large Heavy-Ion Accelerators

To meet the particular requirements of heavy-ion injection into large accelerators, a new model dc power supply was developed and built. A pair of 320 kV dc injector power supplies was installed in 1973 at the "Gesellschaft fuer Schwerionenforschung" (GSI) near Darmstadt, Germany. These power supplies deliver an electronically regulated preaccelerating voltage for both dc and pulsed modes of operation. An improved bouncer system is utilized to keep the output voltage constant at pulsed operation. Furthermore, a new analog-digital voltage-regulating device is incorporated into the control facility. The 320 kV injector system has been in operation for more than a year, and performance has been completely satisfactory.