Underwater electrical wire explosion

Ya E. Krasik, A. Grinenko, S. Efimov, A. Sayapin, A. Fedotov, V. Tz Gurovich, D. Veksler, J. Felsteiner, V. Oreshkin

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

The results of the investigation of the underwater electrical wire explosions using a high power sub-ns generator are reported. The spectroscopic analysis of the emitted radiation has unveiled no evidence for the formation of shunting plasma channel. The latter appears in vacuum and gas wire explosions and causes to the seizure of energy deposition into an exploding wire material. The combination of mechanism for the suppression of formation of shunting channel together with the increased energy deposition rate allows busting the efficiency of the energy deposition into the exploding wire. Estimated energy deposition into Cu and Al wire of up to 200 eV/atom was reported. Careful analysis of the generated shock waves show, that ∼15 % of the deposited energy is transferred into the mechanical energy of the generated water flow. In addition experiments with converging shock waves produced by underwater explosion of cylindrical wire arrays, the possibility of producing of shock waves with pressure amplitude up to 0.25 Mbar at 0.1 mm distance from the axis of the implosion was demonstrated. Results of a simplified model indicate that, using a spherical geometry setup with 7.5mm external radius of the water layer and ∼35kJ total deposited energy, 1.5·1014 neutron yield during ∼1.5ns time can be achieved. These results suggest that ignition of DT target by implosion in water medium can be considered as apromising method for inertial confinement fusion.

Original languageEnglish
Title of host publicationPPPS-2007 - Pulsed Power Plasma Science 2007
Pages951-956
Number of pages6
Volume2
DOIs
Publication statusPublished - 2007
Externally publishedYes
EventPPPS-2007: Pulsed Power and Plasma Science 2007, The 16th IEEE International Pulsed Power Conference and The 34th IEEE International Conference on Plasma Science - Albuquerque, NM, United States
Duration: 17 Jun 200722 Jun 2007

Other

OtherPPPS-2007: Pulsed Power and Plasma Science 2007, The 16th IEEE International Pulsed Power Conference and The 34th IEEE International Conference on Plasma Science
CountryUnited States
CityAlbuquerque, NM
Period17.6.0722.6.07

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Nuclear Energy and Engineering

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  • Cite this

    Krasik, Y. E., Grinenko, A., Efimov, S., Sayapin, A., Fedotov, A., Gurovich, V. T., Veksler, D., Felsteiner, J., & Oreshkin, V. (2007). Underwater electrical wire explosion. In PPPS-2007 - Pulsed Power Plasma Science 2007 (Vol. 2, pp. 951-956). [4652348] https://doi.org/10.1109/PPPS.2007.4652348