Title :
Demonstration of a modular, repetitive-fired 1/4-MJ PFN for ETC guns
Author :
Bhasavanich, D. ; Silva, T. ; Ford, R. ; Gilman, C.M. ; Nielsen, K. ; Shaw, R. ; Rohr, P.R.
Author_Institution :
Physics Int. Co., San Leandro, CA, USA
fDate :
1/1/1997 12:00:00 AM
Abstract :
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%
Keywords :
electrothermal launchers; power supplies to apparatus; pulsed power technology; 0.25 MJ; 16 kV; 85 percent; ETC gun; PVDF dielectric capacitor; computer-based controller; driver; electrothermal-chemical gun; energy density; energy transfer efficiency; metallized electrode; modular PFN; pulse forming network; repetitive firing; shielded inductor; triggered vacuum gap output switch; Assembly; Electrodes; Electrothermal launching; Elementary particle vacuum; Inductors; Magnetic shielding; Magnetic switching; Metallization; Switches; Testing;
Journal_Title :
Magnetics, IEEE Transactions on
