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Electron flux spatial distribution in an ultrashort avalanche electron beam generated at atmospheric air pressure

  • Electron Discharge in Dense Gases
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Abstract

The results of experimental study on generation of ultrashort avalanche electron beams (UAEB) in gas-filled diodes are considered. The spatial distribution of the flux of runaway electrons and X-rays generated in the gas diode fed by nanosecond high-voltage pulses was studied. It was shown that the UAEB in the gas-filled diode (at an air pressure of 1 atm) with sharply nonuniform electric field is generated from the interelectrode region into a solid angle exceeding 2π sr. Narrowing of the cathode-anode gap results in a decrease in the current amplitude of the beam generated to side walls of the gas diode and an increase in the beam current pulse duration in both axial and radial directions. Current pulses of the beam initiated from the side surface of the tubular cathode were detected.

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Authors and Affiliations

  1. Institute of High Current Electronics, Siberian Branch of the Russian Academy of Sciences, Akademichesky pr. 2/3, Tomsk, 634055, Russia

    E. Kh. Baksht, I. D. Kostyrya, M. I. Lomaev, D. V. Rybka & V. F. Tarasenko

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  1. E. Kh. Baksht
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  2. I. D. Kostyrya
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  3. M. I. Lomaev
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  4. D. V. Rybka
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  5. V. F. Tarasenko
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Correspondence to V. F. Tarasenko.

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Baksht, E.K., Kostyrya, I.D., Lomaev, M.I. et al. Electron flux spatial distribution in an ultrashort avalanche electron beam generated at atmospheric air pressure. Phys. Wave Phen. 16, 199–206 (2008). https://doi.org/10.3103/S1541308X08030059

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  • DOI: https://doi.org/10.3103/S1541308X08030059

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