Development of compact module for long-pulse power generator

Based on Blumlein pulse forming network(PFN), a compact module for long-pulse power generator is designed. Two Blumlein PFNs with 20 impedance are symmetrically connected with a linear transformer driver（LTD）s primary coil, and driven by an identical high voltage gas switch which ensures two Blumlein PFNs synchronizing operation. The Blumlein PFN uses L-type configuration. The design ensures PFN and gas switch being compactly connected and the horizontal size of the module being the smallest. Meanwhile, the L-type configuration has little impact on the waveform of the output pulse. The output pulse of the long-pulse module connected witha 10 load is about 135 kV in amplitude and 180 ns in full width at half maximum with a rise time of about 50 ns and a flat top of about 100 ns.