Title :
Wire explosion in vacuum: velocity of current-carryng corona
Author :
Baksht, R.B. ; Rousskikh, A.G. ; Oreshkin, V.I. ; Beilis, I.I. ; Zhigalin, A.S.
Author_Institution :
Tel Aviv Univ., Tel Aviv, Israel
fDate :
June 28 2009-July 2 2009
Abstract :
In the present work our goal was to study the velocity of the corona plasma expansion at the explosion of Al and W wire at a rising current density up to 1·108 ÷ 1.4·108 A/cm2. The wire explosion occurred in two regimes: with and without pre-heating of the wire. It is shown that in the regime without pre-heating the expansion velocity of the corona plasma is determined by the expansion rate of the absorbed gas, while in the pre-heating regime it is related to the expansion rate of metal vapors.
Keywords :
aluminium; corona; exploding wires; explosions; plasma flow; tungsten; Al; W; absorbed gas expansion rate; aluminium wire explosion; corona plasma expansion velocity; current carrying corona velocity; metal vapor expansion rate; tungsten wire explosion; vacuum wire explosion; wire preheating; Capacitors; Corona; Explosions; Optical pumping; Optical scattering; Plasma density; Plasma diagnostics; Plasma measurements; Probes; Wire;
Conference_Titel :
Pulsed Power Conference, 2009. PPC '09. IEEE
Conference_Location :
Washington, DC
Print_ISBN :
978-1-4244-4064-1
Electronic_ISBN :
978-1-4244-4065-8
DOI :
10.1109/PPC.2009.5386211
