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Generation of intense x-rays during ejection of a fast water jet from a metal channel to atmosphere

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Abstract

The radiation processes associated with a supersonic water jet exhausting from a narrow channel are considered. It has been found for the first time that the output of the channel and the initial portion of the jet are sources of intense X-radiation, generation of which is related to cavitation processes in the water jet bulk and subsequent excitation of shock waves. The frequency of X-radiation depends on the types of atoms on a radiating surface (for a jet, it is water; for a channel, the metal atoms on the surface) and increases with the charge of atoms. The total X-ray activity of an experimental setup in the mode of jet exhaust reaches 0.1 Ci. It is found for the first time that the impact of shock acoustic waves, which are formed in the air as a result of cavitation jets of water, on distant screens leads to the generation of a quasi-coherent directional X-ray emission from the back side of these screens. The spatial parameters of this radiation depend on the shape and cross section of the screen and the spatial characteristics of the shock wave.

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References

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Authors and Affiliations

  1. Moscow State University, Moscow, 119992, Russia

    A. A. Kornilova & N. N. Sysoev

  2. Kiev National Shevchenko University, Kiev, 01601, Ukraine

    V. I. Vysotskii

  3. Moscow State Bauman Technical University, Moscow, 107005, Russia

    N. K. Litvin, V. I. Tomak & A. A. Barzov

Authors
  1. A. A. Kornilova
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  2. V. I. Vysotskii
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  3. N. N. Sysoev
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  4. N. K. Litvin
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  5. V. I. Tomak
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  6. A. A. Barzov
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Additional information

Original Russian Text © A.A. Kornilova, V.I. Vysotskii, N.N. Sysoev, N.K. Litvin, V.I. Tomak, A.A. Barzov, 2010, published in Poverkhnost’. Rentgenovskie, Sinkhrotronnye i Neitronnye Issledovaniya, No. 12, pp. 53–63.

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Kornilova, A.A., Vysotskii, V.I., Sysoev, N.N. et al. Generation of intense x-rays during ejection of a fast water jet from a metal channel to atmosphere. J. Surf. Investig. 4, 1008–1017 (2010). https://doi.org/10.1134/S1027451010060224

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  • DOI: https://doi.org/10.1134/S1027451010060224

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