Fermilab Main Injector abort kicker system

The Fermilab Main Injector will require an updated abort kicker system. A new modulator and modified magnet are required to meet the new requirements. Two Main Ring abort magnets will be modified to contain a 12.5 /spl Omega/ load resistor in series with the existing magnet. A pulse transformer is used with a 3.1 /spl Omega/, 10 /spl mu/s pulse forming network to reduce the capacitor voltage to 34 kV and allow operation in air. The pulse transformer primary is floated to allow grounded cathode operation of the thyratron and a grounded terminal on the pulse forming network capacitors.