[M Pirello, F Clara]

WP6372

The +/- 430V High Voltage [HV] Electrostatic Driver Kepco power supplies at End Y were replaced with new lower noise Technology Dynamics HV power supplies. These supplies have analog controls for voltage and current and in the event of a power cycle, they will return to their previous values.  They also should stop randomly tripping like the Kepco supplies.  I have attached images of the front and back of the installed supplies.

The old Kepco supplies were placed on a cart next to the power rack while we evaluate the performace of these new supplies.