Speakers
Mr
Anatoly Konkov
(Tomsk Polytechnic University)Mr
Mikhail Shevelev
(Tomsk Polytechnic University)
Description
Transition and Cherenkov radiation generated by a charge are well known phenom- ena and find a broad application for different scientific communities. Frank was the first to point out the possibility of interference between transition and Cherenkov radi- ation [1]. This interference is understandable, since both radiation mechanisms may be described as a secondary electromagnetic field produced by polarization currents that emerge from the interaction of an electromagnetic field of a charge with atomic electrons of the medium. In 1979 Zrevol and Ruzicka conducted theoretical investigations of this interference effect in the visible wavelength range [2]. They showed that the emitted radiation possessed both transition and Cherenkov radiation properties, i.e., that it is a hybrid radiation. However, despite the critical interest for development of new x-ray monochromatic sources, the theoretical investigations ignored this effect in x-ray range.
In this report we present results of the theoretical investigation for x-ray hybrid ra- diation. Using the polarization current approach [3,4] and the atomic scattering factor formalism [5] to account anomalous dispersion of the complex permittivity we study spectral and angular distributions and polarization properties of x-ray hybrid radiation when a charge passes over a screen.
This work was supposed by the Russian Foundation for Basic Research within the Grant No. 18-32-00385_mol_a and the Competitiveness Enhancement Program of Tomsk Polytechnic University.
References
[1] I.M. Frank, Sov. Phys. Usp. 5 (1962) 740.
[2] V.P. Zrelov and Ruˇziˇcka, Nucl. Instrum. Methods. 160 (1979) 327.
[3] D.V. Karlovets, J. Exp. Theor. Phys. 113 (2011) 27.
[4] M. Shevelev, A. Konkov and A. Aryshev, Phys. Rev. A. 95 (2015) 053851.
[5] B.L. Henke et al., A. Data Nucl. Data Tables, 27 (1982) 1.
Primary author
Mr
Mikhail Shevelev
(Tomsk Polytechnic University)
Co-author
Mr
Anatoly Konkov
(Tomsk Polytechnic University)
