Abstract
High speed condenser banks provide pulsed magnetic fields for impulsive loading experiments. The capability of the methods can be extended by using exploding foils to shape the current that forms the magnetic field. Two circuit applications, the crowbar switch and dynamic damping resistance, are detailed and their use in pulse shaping is illustrated. The necessary principles of exploding foils are discussed, and results comparing calculated and measured 'action integrals' for a range of common foil materials are given. The multichannel crowbar switch described is novel in that it requires no ancillary circuitry and is timed automatically by the primary bank discharge. An exploding foil ruptures insulant mechanically in many sites, giving a low inductance closure 0.3 mu s after the foil explodes.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
