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Rates and channels of water ionization by a high-current high-voltage pulsed discharge

  • Gas Discharges, Plasma
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Abstract

The experimentally observed growth of the plasma density in a high-current high-voltage pulsed discharge in a liquid medium is compared with the results of calculations based on the effective cross sections for electron-impact ionization and other elementary processes. It is found that, in the initial stage of the discharge, the plasma density grows linearly with time, whereas at densities above 3 × 1010 cm−3, the growth becomes exponential due to the collective acceleration of plasma electrons. The gas-vapor fraction of the water medium is ionized by two groups of electrons: low-energy electrons, with energies about several tens of electronvolts, and high-energy ones, with energies in the kiloelectronvolt range. The energy spent on water ionization is estimated and is found to be several times higher than the energy required to ionize a rarefied gas.

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Authors and Affiliations

  1. National Science Center Kharkov Institute of Physics and Technology, ul. Akademicheskaya 1, Kharkiv, 61108, Ukraine

    E. I. Skibenko, V. B. Yuferov, I. V. Buravilov & A. N. Ponomarev

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  1. E. I. Skibenko
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  2. V. B. Yuferov
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  3. I. V. Buravilov
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  4. A. N. Ponomarev
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Additional information

Original Russian Text © E.I. Skibenko, V.B. Yuferov, I.V. Buravilov, A.N. Ponomarev, 2007, published in Zhurnal Tekhnicheskoĭ Fiziki, 2007, Vol. 77, No. 5, pp. 19–22.

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Skibenko, E.I., Yuferov, V.B., Buravilov, I.V. et al. Rates and channels of water ionization by a high-current high-voltage pulsed discharge. Tech. Phys. 52, 555–558 (2007). https://doi.org/10.1134/S1063784207050039

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  • DOI: https://doi.org/10.1134/S1063784207050039

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