7 citations · 26 across the 10 of their papers we have counts for
10 papers
On the helicity of radiative electromagnetic fields
R M Feshchenko, A V Vinogradov
A relativistically invariant expression for the magnetic and electric helicities of free electromagnetic field through the currents, which created those field, are derived. It is d…
A theory of reflective X-ray multilayer structures with graded period and its applications
R. M. Feshchenko
In this paper a theory of reflective X-ray multilayer structures with a graded (slowly varying) period based on the coupled waves method and quasi-classical asymptotic expansions i…
Exact transparent boundary condition for the multidimensional Schrödinger equation in hyperrectangular computational domain
R. M. Feshchenko, A. V. Popov
In this paper an exact transparent boundary condition (TBC) for the multidimensional Schrödinger equation in a hyperrectangular computational domain is proposed. It is derived as a…
Numerical simulation of Ni-like Xe plasma dynamics and laser gain in a low inductivity capillary discharge
N. V. Kalinin, R. M. Feshchenko, I. A. Artyukov +1
X-ray lasers based on transitions in highly charged \textit{Ni}-like ions generating in the "water window" wavelength range can be pumped by compact laboratory discharge sources. T…
On the number and spin of photons in classical electromagnetic field
R M Feshchenko, A. V. Vinogradov
A relativistically invariant expression for the number of photons in free classical electromagnetic field through the currents, that created the field, is derived based on the form…
On inverse problem with phase retrieval for an inclined line in the parabolic approximation
R. M. Feshchenko, I. A. Artyukov, A. V. Vinogradov
The inverse problem of amplitude reconstruction on an inclined line based on the values of amplitude or its module as recorded on semi-infinite line orthogonal to the beam propagat…
Propagation of waves from an arbitrary shaped surface -- a generalization of the Fresnel diffraction integral
R M Feshchenko, A V Vinogradov, I A Artyukov
Using the method of Laplace transform the field amplitude in the paraxial approximation is found in the two-dimensional free space using initial values of the amplitude specified o…
Influence of the electron beam emittance on the polarization of a laser--electron X-ray generator
I. A. Artyukov, A. V. Vinogradov, R. M. Feshchenko
In this paper we analyze the polarization of the X-ray radiation coming from laser--electron X-ray generator (LEXG). We obtain general relations connecting the polarization state o…
Energy losses and efficiency of laser - electron X-ray generator for medical applications
E. G. Bessonov, R. M. Feshchenko, M. V. Gorbunkov +2
A source of medical x-rays based on a 50 Mev storage ring and a quasi-continues picosecond laser is considered. It is shown that such generator produces useful X-ray flux with high…
The coherent synchrotron radiation influence on the storage ring longitudinal beam dynamics
E. G. Bessonov, R. M. Feshchenko, V. I. Shvedunov
We investigate influence on the storage ring beam dynamics of the coherent Synchrotron Radiation (SR) self fields produced by an electron bunch. We show that the maximum energy gai…