Abstract
Experiments on the propagation of powerful high-voltage pulses with a duration on the order of a nanosecond or less in large-scale transmission lines in an atmosphere of various gases make it possible to solve a wide range of fundamental and applied problems, from modeling the passage of electromagnetic pulses (EMPs) through the atmosphere to estimating the electrical strength of elements of pulsed high-voltage gas-filled systems. At the Institute of Applied Physics, Russian Academy of Sciences, experiments with strip lines with a length of up to 5 m were conducted using the Krot and Sprait setups. When EMP propagates with an electric field strength level of up to 100 kV/m in a rarefied gas, effects such as the formation of inhomogeneous and significantly nonstationary glow structures, nonlinear absorption, and dispersive transformation of the shape of high-power pulses caused by gas ionization in the EMP field are studied.
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ACKNOWLEDGMENTS
The authors are grateful to V.A. Terekhin for support in the field of interaction of powerful EMPs with gases and for valuable discussions; to M.V. Efanov, A.G. Lyublinskii, and A.S. Belov for the equipment provided and valuable consultations; S.Yu. Kornishin, A.V. Kotov, A.V. Kuzin, and V.B. Vorob’ev for the production of strip lines; A.A. Shaikin for help in calibrating the optical sensors; and A.N. Katkov for assistance in carrying out measurements.
Funding
This work was supported by the Russian Ministry of Science and Higher Education of the Russian Federation, project no. 075-15-2020-790.
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Korobkov, S.V., Gushchin, M.E., Strikovskiy, A.V. et al. Nonlinear Phenomena During the Propagation of Powerful Nanosecond Electromagnetic Pulses in Large-Scale Strip Lines in Gas at Low Pressure. Dokl. Phys. 68, 181–185 (2023). https://doi.org/10.1134/S1028335823050105
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DOI: https://doi.org/10.1134/S1028335823050105