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Zhurnal Tekhnicheskoi Fiziki, 2016, Volume 86, Issue 4, Pages 34–39
(Mi jtf6575)
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This article is cited in 3 scientific papers (total in 3 papers)
Plasma
Generation of wakefields in a dielectric structure filled with plasma
R. R. Knyazevab, I. N. Onishchenkoa, G. V. Sotnikova a National Science Centre Kharkov Institute of Physics and Technology
b V. N. Karazin Kharkiv National University
Abstract:
The effect of plasma on the amplitude of the wakefield excited in a dielectric structure by a relativistic electron bunch train is studied. The structure under study is a dielectric cylindrical waveguide with an axial drift channel filled with plasma. The dependences of the amplitude of a longitudinal electric field on the plasma density are obtained for the following three cases: the parameters of the dielectric structure and bunches are fixed; the inside or outside radius of the dielectric tube changes according a change in the plasma frequency, and the bunch repetition frequency is adjusted to the plasma frequency and the frequency of the first radial mode of a dielectric wave. It is shown that, when the eigenwave frequencies are adjusted to the bunch repetition frequency via a change in the structure radii, the maximum of the accelerating field is determined by a plasma wave, and there is a plasma density range where a dielectric wave significantly contributes to the total field amplitude. In the case of changing the outside radius, this range is substantially wider.
Keywords:
Plasma Density, Plasma Wave, Electron Bunch, Dielectric Structure, Longitudinal Electric Field.
Received: 08.06.2015
Citation:
R. R. Knyazev, I. N. Onishchenko, G. V. Sotnikov, “Generation of wakefields in a dielectric structure filled with plasma”, Zhurnal Tekhnicheskoi Fiziki, 86:4 (2016), 34–39; Tech. Phys., 61:4 (2016), 511–516
Linking options:
https://www.mathnet.ru/eng/jtf6575 https://www.mathnet.ru/eng/jtf/v86/i4/p34
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