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Beams of Abnormally Accelerated Electrons Emitted by a Vacuum Discharge Plasma with Laser Ignition

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Abstract

It has been experimentally shown that a low-power vacuum pinch discharge with laser ignition can emit a beam of abnormally accelerated electrons with maximum energies per unit charge almost an order of magnitude higher than the voltage across the discharge gap. It has been found that the intensity of the X-ray radiation generated when the beam is applied to the target significantly decreases with an increase in the laser pulse energy. The maximum energy of X-ray quanta is inversely proportional to the mass of the cathode substance ablated by laser radiation during discharge ignition. Possible mechanisms of the electron-beam generation process have been discussed.

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Funding

This work was supported by the Russian Foundation for Basic Research, grants nos. 19-02-00761 and 20-02-00322.

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Authors and Affiliations

  1. Lebedev Physical Institute, Russian Academy of Sciences, 119991, Moscow, Russia

    I. V. Romanov, A. A. Kologrivov, Yu. V. Korobkin & A. A. Rupasov

  2. Irkutsk State University, 664003, Irkutsk, Russia

    V. L. Paperny

  3. MIREA—Russian Technological University, 119454, Moscow, Russia

    Yu. V. Korobkin

Authors
  1. I. V. Romanov
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  2. V. L. Paperny
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  3. A. A. Kologrivov
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  4. Yu. V. Korobkin
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  5. A. A. Rupasov
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Corresponding author

Correspondence to V. L. Paperny.

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The authors declare that they have no conflicts of interest.

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Translated by N. Petrov

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Romanov, I.V., Paperny, V.L., Kologrivov, A.A. et al. Beams of Abnormally Accelerated Electrons Emitted by a Vacuum Discharge Plasma with Laser Ignition. Tech. Phys. Lett. 47, 677–680 (2021). https://doi.org/10.1134/S1063785021070129

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  • DOI: https://doi.org/10.1134/S1063785021070129

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