Abstract
The main results of Tamm's problem on radiation produced by an electron moving uniformly along a finite rectilinear section of its trajectory in a transparent medium are analysed. The radiation is compared with the bremsstrahlung occurring at an instant charge acceleration with allowance for dielectric properties of the medium. The Tamm formula is shown to describe the resulting radiation from interference of two bremsstrahlungs caused by double change in the particle velocity in the same and opposite way. This mechanism can be another approach to explanation of the Vavilov-Cerenkov effect.
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Finally, the authors express their deep gratitude to Professor B. M. Bolotovskii for valuable discussions and coments, and to A. P. Kobzev for discussions that initiated this paper.
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Zrelov, V.P., Ružička, J. Analysis of Tamm's problem on charge radiation at its uniform motion over a finite trajectory. Czech J Phys 39, 368–383 (1989). https://doi.org/10.1007/BF01597796
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DOI: https://doi.org/10.1007/BF01597796