Abstract
Radiation of relativistic particles in a plane magnetic field (for example, in an undulator) is studied. The magnetic system is assumed to be plane and composed of permanent magnets. It is shown that there is a class of special continuous rotations of the magnetization vector for magnetic substances providing changes in the magnetic field of the system without changing the spectrum of spontaneous radiation of relativistic particles. This property of electromagnetic radiation can be used in developing new models for undulators.
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Translated from Zhurnal Tekhnichesko\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l}\) Fiziki, Vol. 70, No. 3, 2000, pp. 69–71.
Original Russian Text Copyright © 2000 by Smolyakov.
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Smolyakov, M.N. Invariance of electromagnetic radiation spectra in undulators based on plane magnets. Tech. Phys. 45, 356–358 (2000). https://doi.org/10.1134/1.1259633
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DOI: https://doi.org/10.1134/1.1259633