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Momentum spread in a relativistic electron beam in an undulator

  • Statistical, Nonlinear, and Soft Matter Physics
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Abstract

The motion of the relativistic electron beam in the spatially periodic magnetic field of an undulator has been considered taking into account the effect of the incoherent field of the spontaneous undulator radiation on the motion of the electrons. An expression for the rms momentum of the electrons has been obtained. It has been shown that the momentum spread in the ultrarelativistic electron beam increases in the spontaneous incoherent emission mode. Conditions for the self-amplification of the spontaneous undulator radiation in ultrashort-wavelength free-electron lasers have been discussed.

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Authors and Affiliations

  1. National Science Center Kharkov Institute of Physics and Technology, ul. Akademicheskaya 1, Kharkov, 61108, Ukraine

    V. V. Ognivenko

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  1. V. V. Ognivenko
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Correspondence to V. V. Ognivenko.

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Original Russian Text © V.V. Ognivenko, 2012, published in Zhurnal Eksperimental’noi i Teoreticheskoi Fiziki, 2012, Vol. 142, No. 5, pp. 1067–1076.

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Ognivenko, V.V. Momentum spread in a relativistic electron beam in an undulator. J. Exp. Theor. Phys. 115, 938–946 (2012). https://doi.org/10.1134/S106377611210007X

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  • DOI: https://doi.org/10.1134/S106377611210007X

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