Перегляд за автором "Rudychev, Y.V."

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Applying of the program codes for modeling the electron accelerator driven subcritical assembly

Ayzatskiy, M.I.; Dovbnya, A.M.; Khazhmuradov, M.A.; Prokhorets, I.M.; Prokhorets, S.I.; Rudychev, Y.V. (Вопросы атомной науки и техники, 2005)

Some physical aspects of the electron accelerator driven subcritical nuclear assembly are considered. Results of calculations of some parameters of target and homogeneous subcritical assembly are presented.
Change of radioactive waste characteristics at their processing and storage at nuclear power plants

Rudychev, V.G.; Girka, I.O.; Rudychev, Y.V.; Kaplij, A.A.; Shchus, O.P.; Sokoltsova, T.O. (Вопросы атомной науки и техники, 2015)

This paper offers some methods developed for calculation of radiation from the casks for storage of radioactive wastes (RW) at the nuclear power plant (NPP) area. Monte Carlo method was used to calculate spectral-angular ...
Combined calculation of radiation from large-sized ground RW storage facilities on the basis of Monte Carlo method

Rudychev, V.G.; Azarenkov, N.A.; Girka, I.O.; Rudychev, D.V.; Rudychev, Y.V. (Вопросы атомной науки и техники, 2019)

A technique to reduce the dose rates, produced by large-sized ground-based radiation sources with dozens of radiating elements of the same geometry arranged along the perimeter, is developed. The radiating elements represent ...
Computation studying of the neutron yield from the neutron-production target irradiated with electrons

Prokhorets, I.M.; Prokhorets, S.I.; Rudychev, Y.V.; Skrypnik, A.I.; Fedorchenko, D.V.; Khazhmuradov, M.A. (Вопросы атомной науки и техники, 2009)

It is considered the modeling of neutron yield from the targets with high atomic numbers irradiated with accelerated electrons. Modeling results from the MCNPX and GEANT software are compared with existing experimental ...
Computer simulations of the stainless steel composition changes induced by neutron based nuclear reactions

Rudychev, Y.V.; Khazhmuradov, M.A.; Prokhorets, S.I.; Fedorchenko, D.V. (Вопросы атомной науки и техники, 2009)

Problem of construction material composition changes induced by neutron fluxes of nuclear reactor VVER-1000 as a result of a nuclear reaction and associated activation processes was considered. The special methodic to ...
Contribution of radionuclides to heat release in the process of SNF dry storage

Rudychev, V.G.; Azarenkov, M.O.; Girka, I.O.; Rudychev, Y.V.; Shchus, O.P. (Вопросы атомной науки и техники, 2017)

In the paper the radionuclide contribution to heat release at dry storage of spent nuclear fuel (SNF) of WWER-1000 was researched. β- and γ-radiation from 60 of the most active fission products, and α-radiation from 20 ...
Depth equalization of the dose when irradiated by electrons at different angles

Rudychev, V.G.; Lazurik, V.T.; Rudychev, D.V.; Rudychev, Y.V. (Вопросы атомной науки и техники, 2020)

The possibility of decreasing the depth-dose inhomogeneity in polyethylene with double-sided and one-sided electron irradiation at different angles with a maximum efficiency of beam use is investigated. The least squares ...
Efficiency of combined Fe and Pb radiation shield of transport casks for SNF transportation

Rudychev, V.G.; Azarenkov, M.O.; Girka, I.O.; Rudychev, Y.V. (Вопросы атомной науки и техники, 2022)

The possibility of increasing the efficiency of combined iron and lead shielding of transport containers (TC) for SNF transportation by railroad is studied. Models for the transport of SNF γ-quanta are developed, that make ...
Efficiency of the dose rate calculation by Monte-Carlo method and point kernel method when handling radioactive waste

Rudychev, V.G.; Azarenkov, N.A.; Girka, I.O.; Rudychev, Y.V. (Вопросы атомной науки и техники, 2018)

For the gamma-radiation sources with the volume up to 1 m³ , filled with typical radioactive waste generated at NPPs with WWER-1000 reactors, the results of the dose rate (DR) calculations made by Monte-Carlo (MCNP) ...
Efficiency of various materials application for radiation shielding at transportation and storage of spent nuclear fuel by dry method

Rudychev, V.G.; Azarenkov, N.A.; Girka, I.O.; Rudychev, Y.V. (Вопросы атомной науки и техники, 2020)

A model of the transport container intended for transportation of spent nuclear fuel (SFN) is studied. The passage of γ-quanta from the major long-lived isotopes is examined. The radiation shields made of iron, lead and ...
Formation of electron beams with given spatial distributions by the scanner

Rudychev, V.G.; Lazurik, V.T.; Rudychev, Y.V. (Вопросы атомной науки и техники, 2022)

In this article, the formation of given distributions of electron fluxes on the surfaces of irradiated objects using magnetic fields of one-dimensional and two-dimensional scanners was studied. The types of time-dependences ...
Identification of the fuel rod cladding destruction from the change of the SNF storage casks radiation

Rudychev, V.G.; Azarenkov, N.A.; Girka, I.O.; Rudychev, Y.V. (Вопросы атомной науки и техники, 2020)

Two options for changing the distribution of spent nuclear fuel due to the possible destruction of the cladding of fuel rods, which causes a change in radiation outside the cask, are considered for VSC-24 casks used for ...
Mathematical modeling and multicriterion optimization for photonuclear production of the ⁶⁷Cu isotope

Dikiy, N.P.; Rudychev, Y.V.; Fedorchenko, D.V.; Khazhmuradov, M.A. (Вопросы атомной науки и техники, 2014)

This paper considers a method for ⁶⁷Cu isotope production using electron bremsstrahlung by the ⁶⁸Zn(γ, p)⁶⁷Cu reaction. The facility for ⁶⁷Cu isotope production contains an electron accelerator, electron-gamma converter ...
Mathematical modeling of a neutron production target of an electron accelerator driven subcritical assembly

Aizatskiy, M.I.; Dovbnya, A.M.; Prokhorets, I.M.; Prokhorets, S.I.; Rudychev, Y.V.; Khazhmuradov, M.A. (Вопросы атомной науки и техники, 2006)

An electron-neutron converter was optimized to ensure effective usage of generated neutrons in a subcritical assembly.
Methods and hardware oriented algorithms for making stellarator magnetic system screw-type winding images

Vorobyova, V.P.; Krugol, M.S.; Lukyanova, V.P.; Martynov, S. A.; Rudychev, Y.V.; Yurkin, A.Yu. (Вопросы атомной науки и техники, 2005)

The base methods, algorithms and standard programming tools which using for 3D images and for visualization by projection of the toroidal stellarator magnetic system screw-type winding were represented in this article. ...
Optimization of bremsstrahlung characteristics for irradiating thick objects

Rudychev, V.G.; Azarenkov, M.O.; Girka, I.O.; Rudychev, Y.V. (Вопросы атомной науки и техники, 2022)

The characteristics of bremsstrahlung (BS) irradiated at different angles from a three-layer converter made of Ta, water, and Fe, the electron energy is 7.5 MeV, was investigated. It is shown that Ta thickness increasing ...
Optimization of the bremsstrahlung converter

Rudychev, V.G.; Azarenkov, M.O.; Girka, I.O.; Lazurik, V.T.; Rudychev, Y.V. (Вопросы атомной науки и техники, 2022)

Variants of the formation of bremsstrahlung (BS) distributions along an extended converter, which ensures the maximum thickness of an object under two-sided and four-sided irradiation, are studied. For the target of the ...
Optimization of the detection system for ¹⁶N registration along with coolant leaks in the WWER-1000 steam generator

Rudychev, V.G.; Rudychev, Y.V.; Azarenkov, N.A.; Bondar, A.Y. (Вопросы атомной науки и техники, 2013)

One of the methods of control of steam generator coolant flow from the primary circuit to the 2nd circuit is a measurement of the isotope ¹⁶N activity. Aim of this work is the optimizing of characteristics and placements ...
Physical ground for radioactive waste transmutation facility using thermonuclear neutrons

Rudychev, Y.V.; Khazhmuradov, M.A.; Slabospitskiy, R.P. (Вопросы атомной науки и техники, 2009)

Two variants of radioactive waste transformation system using thermonuclear neutrons were considered. In one case transuranium elements and fission products are irradiated together and in second one they are irradiated ...
Questions of the effective methods choosing for neutron-physical processes simulation

Prokhorets, I.M.; Prokhorets, S.I.; Rudychev, Y.V.; Khazhmuradov, M.A.; Fedorchenko, D.V. (Вопросы атомной науки и техники, 2007)

One of the possible variants of neutron generator is electron accelerator driven subcritical facility. Analytical method is not appropriate one for designing of this system. Such system is simulated by Monte Carlo methods. ...

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