Pulsed power supplies for NSLS-II Booster ring kicker magnets

The third generation light source NSLS-II was constructed at BNL, within the project a Booster ring commissioning was successfully completed [1]. Booster injection and extraction kicker magnets pulsed power supplies are considered in the paper. The injection pulsed supplies are capable of generating 0.7-1.5 kA current of 300 ns flat-top, 170 ns rise time, 170 ns fall time with ripples on the tail less then ±0.5%. The extraction kicker is supplied with 2 kA pulse current of 300 ns duration and flat-top deviation less then ±0.2%. 25-kV pulse forming networks built on ceramic capacitors and 10-kA TPI-type pseudospark switches are used in the generators design. Questions and improvements based on one-year PFNs and pseudosparks routine operation are described. Details of generators schematics and results obtained at the NSLS-II and BINP facilities are presented.