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Demonstration of a modular, repetitive-fired 1/4-MJ PFN for ETC guns

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7 Author(s)
Bhasavanich, D. ; Physics Int. Co., San Leandro, CA, USA ; daSilva, T. ; Ford, R. ; Gilman, C.M.
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A compact pulse forming network (PFN) storing 1/4 MJ at 16 kV has been assembled and tested to validate its performance as a driver for an electrothermal-chemical (ETC) gun. The PFN features a triggered vacuum gap output switch; shielded inductors at energy density near 10 MJ/m3, with low external magnetic fields; 25 MJ/m3 metallized electrode, PVDF dielectric capacitors; and it computer-based controller. The PFN was repetitively fired at 1/3 Hz in 5-shot bursts. Variability of the output energy over the burst was less than 2%. Energy density for the overall PFN module was 1.2 MJ/m3 and the energy transfer efficiency predicted for a 12-module PFN system to an ETC gun like load was 85%

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Magnetics, IEEE Transactions on  (Volume:33 ,  Issue: 1 )