• Letter

Streamer formation processes trigger intense x-ray and high-frequency radio emissions in a high-voltage discharge

E. V. Parkevich, K. V. Shpakov, I. S. Baidin, A. A. Rodionov, A. I. Khirianova, T. F. Khirianov, Ya. K. Bolotov, M. A. Medvedev, V. A. Ryabov, Yu. K. Kurilenkov, and A. V. Oginov
Phys. Rev. E 105, L053201 – Published 2 May 2022
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Abstract

For a laboratory discharge initiated in a long air gap by a microsecond megavolt pulse, we simultaneously register wideband high-frequency microwave and hard-x-ray emissions and thoroughly analyze the temporal relationship of the emissions depending on the discharge evolution. The temporal structure of microwave radiation is found to consist of numerous short intense bursts with high-frequency components. We directly show that x-ray and microwave emissions can appear almost synchronously in the discharge but only when a complex net of countless plasma channels forms and spans the entire discharge gap. The channel formation is closely related to the intense development of multiple streamers.

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  • Received 1 March 2022
  • Accepted 6 April 2022

DOI:https://doi.org/10.1103/PhysRevE.105.L053201

©2022 American Physical Society

Physics Subject Headings (PhySH)

Plasma Physics

Authors & Affiliations

E. V. Parkevich1, K. V. Shpakov1, I. S. Baidin1, A. A. Rodionov1, A. I. Khirianova1, T. F. Khirianov1, Ya. K. Bolotov2,1,*, M. A. Medvedev1, V. A. Ryabov1, Yu. K. Kurilenkov3, and A. V. Oginov1

  • 1P. N. Lebedev Physical Institute of the Russian Academy of Sciences, 53 Leninskiy Prospekt, Moscow 119991, Russia
  • 2Moscow Institute of Physics and Technology, Institutskiy Pereulok 9, Dolgoprudny, Moscow Region 141700, Russia
  • 3Joint Institute for High Temperatures, Russian Academy of Sciences, Izhorskaya Street 13/2, Moscow 125412, Russia

  • *bolotov.yak@phystech.edu

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Issue

Vol. 105, Iss. 5 — May 2022

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