Zobrazeno 1 - 10
of 26
pro vyhledávání: '"L I Ognev"'
Autor:
L. I. Ognev
Publikováno v:
Technical Physics. 60:1525-1528
An approximate solution to the dispersion equation for the dynamics of an X-ray beam trapped in a plane waveguide with smooth walls is used to study the dependence of extinction depth on the optical density of wall material and X-ray energy. For angl
Autor:
L. I. Ognev
Publikováno v:
Technical Physics. 55:1628-1632
The role of incoherent scattering in damping of transmitted radiation is studied on the basis of the statistical theory of X-ray scattering in a narrow rough collimator. Approximate expressions for the damping coefficients of waveguide modes are obta
Autor:
L. I. Ognev
Publikováno v:
Technical Physics Letters. 33:972-975
Numerical simulations of the heating of a carbon dust particle (pellet) in hydrogen plasma showed that the character of heating depends in a threshold manner on the initial temperature of the pellet. The heating proceeds at a high rate if the initial
Autor:
L. I. Ognev
Publikováno v:
X-Ray Spectrometry. 31:274-277
The effects of diffraction on capture of the radiation into narrow channels between two weakly rough surfaces pressed together (‘slitless collimator’) and channeling of x-radiation in a three-layered structure with low atomic number thin film ins
Autor:
L. I. Ognev, T. A. Bobrova
Publikováno v:
Technical Physics. 46:696-699
The transmission of X-rays through a rough narrow channel in a dielectric material is investigated by numerical simulation with regard for diffraction and loss in coherence. It is found that the transmission factor may sharply decrease in channels wi
Autor:
L. I. Ognev
Publikováno v:
Technical Physics Letters. 36:133-135
The role of incoherent scattering in the attenuation of transmitted radiation has been studied using the statistical theory of X-ray beam scattering in a narrow rough collimator. Based on the obtained approximation expressions for the coefficients of
Autor:
T. A. Bobrova, L. I. Ognev
Publikováno v:
Journal of Experimental and Theoretical Physics Letters. 69:734-738
The transmission of x rays through rough submicron narrow channels is investigated by numerical simulation with diffraction and decay of coherence taken into account. It is found that transmission is strongly increased for directions within the diffr
Autor:
L. I. Ognev, T. A. Bobrova
Publikováno v:
Technical Physics. 44:161-165
The dynamics of relativistic electrons subjected to planar channeling in distorted crystals is investigated using step-by-step numerical integration of the Schrodinger equation. It is shown that periodic distortion of a planar channel (the formation
Autor:
A. S. Bushev, A.A. Lbov, V.A. Bochkarev, V. Ya. Semenov, V. B. Adamskii, N.P. Martynov, S. P. Vesnovskii, V. P. Zommer, B. K. Maslennikov, L. P. Bilibin, L. I. Ognev, V. I. Postniko, B. A. Nadykto
Publikováno v:
Atomic Energy. 81:651-655
Autor:
V S Lisitsa, L I Ognev
Publikováno v:
Journal of Physics: Conference Series. 666:012005
A method of detecting a weak radiation of the Balmer lines from the hydrogen isotopes in the edge plasma of a tokamak (SOL) on the strong optical background formed by reflection of the light emitted from the divertor plasma is proposed. The method is