We obtain an approximate analytical solution for the initial problem of quasi-linear relaxation of the synchrotron instability in a cold plasma for the case of a quasi-isotropic monoenergetic initial distribution of relativistic electrons and low initial radiation energy density. The key parameters of the analytical solution coincide with the results of the numerical calculation with 20% accuracy.
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Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Radiofizika, Vol. 52, Nos. 5–6, pp. 455–464, May–June 2009.
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Koryagin, S.A. Approximate analytical solution for quasi-linear equations of synchrotron instability. Radiophys Quantum El 52, 413 (2009). https://doi.org/10.1007/s11141-009-9146-7
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DOI: https://doi.org/10.1007/s11141-009-9146-7