Distribution of matter in the current-carrying plasma and dense core of the discharge channel formed upon electrical wire explosion

Study of the core-corona structure formed during the explosion of an aluminum wire in vacuum

“…In other words, this EOS model does not take into account Coulomb interparticle interac tion, the energy of which in a nonideal plasma is com parable with the particle kinetic energy. This is why the core material in these simulations expands rapidly, whereas in experiments [8], a cold dense core nonra diating in the UV range exists for a much longer time.…”

“…In this scheme, only the rays that were scattered by any inhomogeneities contribute to the schlieren image, while most of the probing radiation is cut off by the obstacle situated in the focal plane of the objective and does not reach the camera. Since only the rays that deviate upward and pass above the "knife" edge reach the image plane, the different signs of refraction on neutrals and free electrons result in that one half of the image of a cylindrically symmetric object is formed by the rays that were refracted mainly on neutrals, while the other one half is formed by the rays that were refracted mainly on free electrons (see [8] for details).…”

Experimental Studies of Hollow Structure Formed in the Dense Core of Exploded Wires

“…16. These images were obtained in tests in which the discharge current was interrupted just after the resistive heating phase [24].…”

Diagnostics of underwater electrical wire explosion through a time- and space-resolved hard x-ray source

“…6 In addition, Schlieren photography was used to investigate the density profile of exploding wires in vacuum. 7 However, the dense, non-ideal plasma formed in underwater explosions cannot be probed using laser or spectroscopic techniques because of the opacity of a thin plasma layer that forms in the vicinity of the exploding wire, and the large (>10 20 cm −3 ) plasma density of the discharge channel.…”