Development of a long-pulse power generator based on arc-type PFN

A compact module based on arc-type pulse forming network(PFN) for long-pulse power generator is designed. Four Blumlein PFNs with 24 impedance are symmetrically connected with the LTDs primary coil and driven by two high voltage gas switches. The Blumlein PFNs use arc configuration. The design ensures small horizontal size of the module and compact connection of PFNs and gas switches. On this basis, a two-module long-pulse power generator is developed. At the repetition frequency of 5 Hz, the output pulse of the long-pulse module connected with 12 load is about 260 kV in amplitude, 170 ns in duration with power of 5.2 GW.