DocumentCode :
2694466
Title :
A compact sub-microsecond, high current generator for wire explosion experiments and its use for first X-pinch experiments
Author :
Aranchuk, L.E. ; Chuvatin, A.S. ; Larour, J.
Author_Institution :
Lab. de Phys. et Technol. des Plasmas, Ecole Polytech., Palaiseau, France
Volume :
2
fYear :
2003
fDate :
15-18 June 2003
Firstpage :
960
Abstract :
The PIAF generator was designed for low total energy and high energy density experiments with liners, X-pinch or fiber Z-pinch loads. The generator scheme is based on an LC circuit including six NWL 180 nF - 50 kV capacitors storing up to 1.3 kJ. The capacitors are connected in parallel to a single multi-spark switch designed to operate at atmospheric pressure. The switch allows reaching a time delay between the trigger pulse and the current pulse of less than 80 ns and has a jitter of 6 ns. The total inductance without a load compartment was optimized to be as low as 16 nH. Short circuit tests at 40 kV charging voltage with a 6 nH inductive load, demonstrated that the current of 250 kA was reached on PIAF with a 180 ns rise-time. The generator dimensions are 660x660x490 mm with a total mass of less than 100 kg. Description of the PIAF generator and the first experimental results on PIAF with an X-pinch type load are reported. Typically, a 100 microns point-like x-ray source with less than 2 ns time long in the region above 1 keV has been realized. The estimated total radiated energy in this spectral region was at least 50-100 mJ.
Keywords :
Z pinch; atmospheric pressure; capacitors; electric generators; explosions; inductance; jitter; switches; wires (electric); 1 keV; 180 ns; 250 kA; 40 kV; 6 ns; LC circuit; PIAF generator; X-pinch experiments; atmospheric pressure; capacitors; charging voltage; compact generator; current pulse; energy density experiments; fiber Z-pinch loads; high current generator; inductance; jitter; multispark switch; point-like X-ray source; radiated energy; short circuit tests; submicrosecond generator; trigger pulse; wire explosion experiments; Capacitors; Cathodes; Circuits; Electrodes; Explosions; Jitter; Plasma density; Switches; Voltage; Wire;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Pulsed Power Conference, 2003. Digest of Technical Papers. PPC-2003. 14th IEEE International
Conference_Location :
Dallas, TX, USA
Print_ISBN :
0-7803-7915-2
Type :
conf
DOI :
10.1109/PPC.2003.1277971
Filename :
1277971
Link To Document :
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