Open AccessTO THE DISTRIBUTION OF THE DISPERSION EQUATION ROOTS FOR THE PARAMETRIC CHERENKOV RADIATION
Author(s) -
В. Ф. Ткаченко,
І. V. Tkachenko,
A.P. Tolstoluzhsky,
S. N. Khizhnyak
Publication year - 2020
Publication title -
problems of atomic science and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.216
H-Index - 17
eISSN - 1562-6016
pISSN - 1682-9344
DOI - 10.46813/2020-130-036
Subject(s) - cherenkov radiation , wavelength , dispersion (optics) , excited state , radiation , physics , parametric statistics , range (aeronautics) , optics , electromagnetic spectrum , dielectric , materials science , atomic physics , optoelectronics , mathematics , statistics , detector , composite material
Distribution of the roots of dispersion equation of the parametric Cherenkov radiation (PCR) excited by uniformly moving charged particle in an ideally conducting metal waveguide filled with a spatially periodic layered dielectric is studied. The study both in long wavelengths range and in the range of wavelengths comparable and smaller than the period of non-uniformity is presented. It is shown that in the case of long wavelengths the dependence of the frequency of the excited PCR on the particle velocity is monotonic. For the case of wavelengths comparable and shorter than the non-uniformity period the spectrum of PCR is more complicated. Its characteristic features are determined.