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Перегляд Problems of Atomic Science and Technology, 2019 за назвою

Репозиторій DSpace/Manakin

Перегляд Problems of Atomic Science and Technology, 2019 за назвою

Сортувати за: Порядок: Результатів:

  • Mass-spectrometer diagnostics complex with cryogenic nitrogen trap 
    Tsybenko, S.A.; Kramskoj, E.D.; Korovin, V.B.; Yevsyukov, A.V.; Lozin, A.V.; Moiseenko, V.E.; Kholomyeyev, G.A.; Gribanov, V.Yu.; Kozulya, M.M.; Maznichenko, S.M.; Krasyuk, A.Yu.; Baron, D.I.; Uragan-2M Team (Вопросы атомной науки и техники, 2019)
    The measuring complex with the cryogenic nitrogen trap [1] was created to monitor the gas composition in the stellarator Uragan-2M chamber. The complex provides several gas sampling options for the research: directly from ...
  • Method for measuring external and internal parameters of plasma with ungrounded gas discharge electrodes 
    Chunadra, А.G.; Sereda, К.N.; Tarasov, I.K. (Вопросы атомной науки и техники, 2019)
    This work is devoted to the method of measuring the external and internal parameters of gas-discharge plasma in conditions of non-potential "ground" using a multi-grid probe with ungrounded electrodes and a casing. The ...
  • Method of increasing the longitudnal current of Н⁻ ions from pig with a metal-hydride cathode 
    Sereda, I.N.; Tseluyko, A.F.; Ryabchikov, D.L.; Hrechko, Ya.O.; Krupka, A.A. (Вопросы атомной науки и техники, 2019)
    The possibility of increasing the current of negative hydrogen ions extracted in the longitudinal direction from Penning discharge with a metal-hydride cathode by changing potentials at the discharge cathodes is investigated. ...
  • Method of magnetic separation in flight 
    Zub, S.I.; Zub, S.S.; Lyashko, S.I. (Вопросы атомной науки и техники, 2019)
    Mathematical models: the source of magnetic field, the lump of ore (paramagnetic body) have been created. The ore dynamics in magnetic field is considered taking into account gravity and aerodynamic drag force. The results ...
  • Methods for control the self-sustained plasma-beam discharge at high energy density 
    Hrechko, Ya.O.; Azarenkov, N.A.; Tseluyko, A.F.; Ryabchikov, D.L.; Sereda, I.N. (Вопросы атомной науки и техники, 2019)
    Three methods for control the self-sustained plasma-beam discharge at high energy density are presented in this paper. Using a particular method, it is possible to set the location of the double layers formation in the ...
  • Methods for describing the shape of defective nanostructured formations in materials under irradiation 
    Kul’ment’ev, A.I. (Вопросы атомной науки и техники, 2019)
    Within the framework of the program of using modern computer methods in the task of developing radiation-resistant materials for IV-generation reactors, several methods for describing the form of local atomic segregations ...
  • MHD plasma activity in the U-3M torsatron during the RF cleaning mode with the magnetic field Bφ(0) = 0.02 T 
    Pashnev, V.K.; Sorokovoy, E.L.; Petrushenya, A.A.; Ozherel’ev, F.I. (Вопросы атомной науки и техники, 2019)
    In the considered mode of cleaning, plasma was created and heated by antennas at frequencies fRF₁ ≈ 7.9 and fRF₂ ≈ 8.8 MHz, the magnitude of the constant magnetic field was Bφ(0) ≈ 0.02 T, so that the ion cyclotron frequency ...
  • Modeling of time behavior of H, H₂ neutral densities, and Hα line intensity in the RF plasma of the Uragan-3M torsatron 
    Bondarenko, V.N.; Petrushenya, A.A. (Вопросы атомной науки и техники, 2019)
    In this paper, the results of computer simulation of time behavior of hydrogen atoms and molecules in the plasma produced by RF power in the Uragan-3M torsatron are presented. The evolution of the density of fast chargeexchange ...
  • Modelling of dual-polarization interferometry in stellarators 
    Filippov, V.; Grekov, D.; Azarenkov, N. (Вопросы атомной науки и техники, 2019)
    The dual polarization interferometers have been designed and applied in the Uragan-3M and Uragan-2M torsatrons. However, an extensive modeling of microwave propagation through the plasma in the sheared magnetic field should ...
  • Mode selection by ohmic losses in longitudinally corrugated cavities of sub-THz second-harmonic gyrotrons 
    Tkachova, T.I.; Shcherbinin, V.I.; Tkachenko, V.I. (Вопросы атомной науки и техники, 2019)
    Ohmic wall losses are proposed as a means for improving the mode selection in a cylindrical gyrotron cavity with longitudinal wedge-shaped corrugations. Such losses depend on mode frequency and geometrical parameters of ...
  • Modification effects of microsecond high current electron beam exposure on titanium VT22 alloy 
    Donets, S.Ye.; Klepikov, V.F.; Lytvynenko, V.V.; Prokhorenko, E.M.; Startsev, O.A.; Lonin, Yu.F.; Ponomarev, A.G.; Uvarov, V.T.; Starovoytov, R.I. (Вопросы атомной науки и техники, 2019)
    Titanium VT22 alloy was irradiated in the TEMP-A accelerator with the high current electron beam with the energy of 350 keV, beam current of 2 kA, pulse length around 4 µs, and beam diameter of 45 mm. The irradiation was ...
  • Modulation instability in two component Bose-Einstein condensate with relative component motion 
    Ivashin, A.P.; Marinenko, E.D. (Вопросы атомной науки и техники, 2019)
    The development of modulation instability in a spatially homogeneous two-component Bose-Einstein condensate (BEC), in which the interacting components move through each other at a relative speed, is investigated. It is ...
  • Multibeam system simulation 
    Martynenko, P.A. (Вопросы атомной науки и техники, 2019)
    In this paper the possibility of calculating the dynamics of particles of an ion beam and an electron beam in a formation system was investigated. The results of the calculation are compared with the experimental data.
  • Neutron-physical characteristics of a system of quasi-infinite depleted uranium blanket – particle accelerator. Monte Carlo simulation 
    Bukhal, O.V.; Husak, K.V.; Zhuk, I.V.; Voronko, V.А.; Sotnikov, V.V.; Zhadan, A.А.; Baldin, A.А.; Tyutyunnikov, S.I. (Вопросы атомной науки и техники, 2019)
    Simulation of a quasi-infinite uranium target irradiated by 1 GeV proton and deuteron particles with the help of FLUKA simulation package was carried out. Neutron spectra and neutron flux in a target volume were obtained. ...
  • Nonlocal equations for the electromagnetic field in the inhomogeneous accelerating structures 
    Ayzatsky, M.I. (Вопросы атомной науки и техники, 2019)
    The procedure for obtaining a difference equation, the solution of which is the components of the electric (or magnetic) field at the chosen set of points in the volume of the resonator chain, was developed. We started ...
  • Notes on coherent polarization X-ray radiation by relativistic electrons in a crystal 
    Morokhovskii, V.L. (Вопросы атомной науки и техники, 2019)
    This paper deals with restrictions on the use of so-called kinematical theory of coherent polarization X-ray radiation by relativistic electrons in a single crystal target.
  • Numerical calculation of the dislocation basis loop bias in hexagonal crystal 
    Babich, A.V.; Ostapchuk, P.N. (Вопросы атомной науки и техники, 2019)
    The diffusion fluxes of radiation point defects onto a circular base edge loop of zirconium in a toroidal reservoir are calculated numerically (by the finite difference method). Elastic interaction of point defects and ...
  • Numerical simulation of initial pressure effect on energy input in spark discharge in nitrogen 
    Korytchenko, K.V.; Tomashevskyi, R.S.; Varshamova, I.S.; Dubinin, D.P.; Lisnyak, A.A.; Lipovyi, V.O. (Вопросы атомной науки и техники, 2019)
    An influence of initial gas pressure on energy deposited by spark discharge in nitrogen during the spark channel expansion is evaluated. Influence of the pressure on efficiency of energy deposition and emitted energy in a ...
  • On beam propagation stability in a linac accelerating channel based on combined RF-focusing 
    Tishkin, S.S.; Shulika, M.G.; Shulika, O.M. (Вопросы атомной науки и техники, 2019)
    The issue of simultaneous longitudinal and transverse particle propagation stability in a linear ion accelerator channel based on combined RF-focusing is investigated. Values for RFQ field gradient to provide transverse ...
  • On critical parameters of photonuclear isotope production 
    Uvarov, V.L. (Вопросы атомной науки и техники, 2019)
    Analytical model for description of isotope generation in a thick production target exposed to no uniform flux of high-energy bremsstrahlung radiation is developed. A set of principal process parameters determinative the ...

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