Diffraction radiation from a charge as radiation from a superluminal source in a vacuum
A.A. Tishchenkoc,a,d aNational Research Nuclear University ‘MEPhI’, Kashirskoe shosse 31, Moscow, 115409, Russian Federation bNational Research Tomsk Polytechnic University, prosp. Lenina 30, Tomsk, 634050, Russian Federation cNational Research Centre ‘Kurchatov Institute’, pl. akad. Kurchatova 1, Moscow, 123182, Russian Federation d Laboratory of Radiation Physics, Belgorod National Research University, , 308034, Belgorod, Russia, Koroleva str. 2a, build. 4, off. 215, Belgorod, 308034, Russian Federation
An analysis of spectral-angular characteristics of diffraction radiation, both incoherent and coherent, has been performed. It is shown that radiation processes can be interpreted as Cherenkov radiation, which is produced by a region of dynamic polarization moving along a target edge with superluminal velocity vSL. Such radiation is generated if the condition vSL > c is fulfilled, which is the conventional 'threshold' Cherenkov condition.
%0 Journal Article
%T Diffraction radiation from a charge as radiation from a superluminal source in a vacuum
%A A. P. Potylitsyn
%A D. Yu. Sergeeva
%A M. N. Strikhanov
%A A. A. Tishchenko
%J Phys. Usp.
Received: 24th, April 2019, revised: 1st, October 2019, accepted: 4th, October 2019