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Pis'ma v Zhurnal Èksperimental'noi i Teoreticheskoi Fiziki, 2021, Volume 113, Issue 6, Pages 370–377
DOI: https://doi.org/10.31857/S1234567821060033 (Mi jetpl6384) 		 
This article is cited in 15 scientific papers (total in 15 papers)

PLASMA, HYDRO- AND GAS DYNAMICS

Compression of a runaway electron flow in an air gap with a nonuniform magnetic field

M. A. Gashkova, N. M. Zubarevba, O. V. Zubarevaa, G. A. Mesyatsba, K. A. Sharypova, V. G. Shpaka, S. A. Shunailova, M. I. Yalandinab

a Institute of Electrophysics, Ural Branch, Russian Academy of Sciences, Yekaterinburg, 620016 Russia
b Lebedev Physical Institute, Russian Academy of Sciences, Moscow, 119991 Russia
Full-text PDF (595 kB) Citations (15)
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DOI: https://doi.org/10.31857/S1234567821060033
Abstract: The first results of study of the compression of a picosecond runaway electron flow in an air electrode gap by a pulsed guiding magnetic field increasing along the electron trajectory by a factor of 10–20 are reported. The main aim is to increase the density and homogeneity of the current of runaway electrons that are generated near the edge of a tubular cathode and are accelerated in an inhomogeneous electric field to a collector inside a solenoid. Restrictions on the integral current of runaway electrons caused by the reflection of particles with high transverse velocities from a region of concentration of magnetic field lines (magnetic mirror) have been analyzed. Under “optimal” conditions (magnetic field, the diameter of the cathode, and its position with respect to the solenoid are varied), a magnetized tubular runaway electron flow radially compressed by a factor of 3–4 with a current density up to 100 A/cm$^2$ is formed.
Funding agency Grant number
Russian Foundation for Basic Research 19-08-00292
20-08-00172
This work was supported in part by the Russian Foundation for Basic Research (project no. 19-08-00292 (experiment) and no. 20-08-00172 (theory)).
Received: 15.01.2021
Revised: 30.01.2021
Accepted: 04.02.2021
English version:
Journal of Experimental and Theoretical Physics Letters, 2021, Volume 113, Issue 6, Pages 370–377
DOI: https://doi.org/10.1134/S0021364021060059
Bibliographic databases:
Document Type: Article
Language: Russian
Citation: M. A. Gashkov, N. M. Zubarev, O. V. Zubareva, G. A. Mesyats, K. A. Sharypov, V. G. Shpak, S. A. Shunailov, M. I. Yalandin, “Compression of a runaway electron flow in an air gap with a nonuniform magnetic field”, Pis'ma v Zh. Èksper. Teoret. Fiz., 113:6 (2021), 370–377; JETP Letters, 113:6 (2021), 370–377
Citation in format AMSBIB
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    • This publication is cited in the following 15 articles:
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