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Перегляд Bопросы атомной науки и техники, 2004 за назвою

Репозиторій DSpace/Manakin

Перегляд Bопросы атомной науки и техники, 2004 за назвою

Сортувати за: Порядок: Результатів:

  • High-current electron beam guiding by the creation of profiled plasma channel 
    Agafonov, A.V.; Bogachenkov, V.A. (Вопросы атомной науки и техники, 2004)
    Earlier performed experiments showed effectiveness of proposed approach for a high-current non-relativistic electron beam generation in a plasma-filled diode with a plasma anode and an explosive emission cathode. Our ...
  • High-current electron beam power multiplication by converging the beams 
    Chornyi, V.; Frolov, A.; Tsepilov, G.; Dubina, V.; Chornyi, A.; Solovyov, V. (Вопросы атомной науки и техники, 2004)
    This paper is devoted to research and development of the techniques of multiterawatt electron beam generation in pulsed multimodular systems. Three methods of beam convergence/overlapping have been studied numerically ...
  • High-current hollow beam dynamics in RF electron guns 
    Khodak, I.V.; Kushnir, V.A.; Mitrochenko, V.V. (Вопросы атомной науки и техники, 2004)
    RF electron guns with a metal-dielectric cathode are able to generate intense beams with nanosecond current pulse duration. The plasma developed during the dielectric surface flashover in vacuum is the source of particles ...
  • High voltage modulators based on solid-state elements for linacs (review) 
    Beloglazov, V.I.; Dyomin, V.S.; Dovbush, L.S.; Kosoj, A.I.; Shkirida, S.M.; Tur, Yu.D. (Вопросы атомной науки и техники, 2004)
    The data on developing and creating high-voltage pulse modulators for linacs with using Insulator Gate Bipolar Transistors (IGBT) and Integrated Gate Commutate Thyristors (IGCT) are presented. Comparative analysis of ...
  • HV pulse modulator with switch on HV IGBT transistor 
    Dolgov, A.; Kildisheva, O. (Вопросы атомной науки и техники, 2004)
    The new generation modulator with a solid-state switch to provide the plate pulse supply of RF generators of hydrogen-ion linear accelerators is described. The use of a solid-state switch, instead of a vacuum tube, allowed ...
  • Hysteresis effects in electron guns 
    Agafonov, A.V.; Lebedev, A.N. (Вопросы атомной науки и техники, 2004)
    Computer simulations of beam formation in an electron gun with large compression of a thin annular beam show some hysteresis effects: a beam with different currents can exist in the same external conditions. The results ...
  • Improved characteristics of HV pulse modulators for technological accelerators 
    Dolgov, A.; Kildisheva, O. (Вопросы атомной науки и техники, 2004)
    The new modulator series intended to provide a pulse power supply of MI-451, MI-456 microwave magnetrons is described. The main feature of this modulator series, as compared with the existing national counterparts, is ...
  • Increase of the RF pulse width in the cavities of the main part of MMF linac 
    Leontiev, V.N.; Peplov, V.V. (Вопросы атомной науки и техники, 2004)
    At the MMF linac for increasing an average beam current an rf pulse width in the accelerating cavities of the main part of the linac have to be increased. Pulse widths of a preamplifier modulator and a high voltage ...
  • Installation for gas-phase deposition of materials 
    Lonin, Yu.F.; Pilipets, Yu.O.; Khovansky, N.A.; Sheremet, V.I.; Shirokov, B.M. (Вопросы атомной науки и техники, 2004)
    The installation for gas-phase deposition of materials is developed. Gas- dynamic parameters of a vapor-gas mixture flow in the reaction volume by flow-around of the surface being coated are evaluated. The processes ...
  • Interaction between a coaxial cavity and low beta intense electron beams 
    Keiichi Kamada; Takashi Nishiguchi; Keiichi Ishibana; Masaki Kamada; Ritoku Ando (Вопросы атомной науки и техники, 2004)
    Experiments and simulations for intense relativistic electron beams with energy of <1 MeV and current of several kA that pass through a gap are carried out. A criterion is proposed for the gap length through which the ...
  • Interference of quantities of interstrip capacitance and interstrip resistances of the two-coordinate microstrip detector 
    Maslov, N.I.; Potin, S.M.; Starodubtsev, A.F. (Вопросы атомной науки и техники, 2004)
    The dependence of interstrip capacitance of the double-sided microstrip detector on frequency of measuring is explored. Has been investigated at what frequency of measuring the observed value of interstrip capacitance is ...
  • Investigation of injection through bending magnet fringe fields in X-rays source based on the H-100M storage ring 
    Gladkikh, P.I.; Mytsykov, A.O.; Rezaev, A.V.; Zelinsky, A.Yu. (Вопросы атомной науки и техники, 2004)
    In paper the injection in the X-ray source based on the H100-M storage ring, through fringe fields of a bending magnet is considered. The simulation of charged particle beam motion through 3-d fields of magnetic devices ...
  • Investigation of nuclear chronometer time decay characteristics for revision of age of astrophysics objects 
    Doroshko, N.L.; Dolinska, M.E. (Вопросы атомной науки и техники, 2004)
    The new algorithm for the determinations of the characteristics functions of the energy distribution, decay probability, decay intensities and life times of the excited levels is proposed. Quantum-mechanical motivation of ...
  • Investigation of properties of a spatial lattice formed by resonance dielectric spheres 
    Bryzgalov, G.A. (Вопросы атомной науки и техники, 2004)
    The artificial dielectric model is used in creation of a material with the negative ε and µ and in describing electromagnetic wave interactions with vital tissues. The paper presents the theoretical study of the frequency ...
  • Investigation of radionuclide ¹³⁷Cs sorption by natural and synthetic zeolites 
    Lonin, A.Yu.; Krasnopyorova, A.P. (Вопросы атомной науки и техники, 2004)
    Sorption-selective properties of natural zeolite-clinoptilolite, from the Sokirnitsky deposit of Ukraine, and synthetic zeolites relatively to radionuclide ¹³⁷Cs and depending on pH and temperature were studied. A high ...
  • Investigation of stability electron beam parameters in sources with cold secondary-emission cathodes 
    Dovbnya, A.N.; Ayzatsky, N.I.; Boriskin, V.N.; Zakutin, V.V.; Kushnir, V.A.; Mitrochenko, V.A.; Reshetnyak, N.G. (Вопросы атомной науки и техники, 2004)
    The investigation into the generation of tubular electron beams and their parameters in a system of secondaryemission cathodes was carried out. The parameters of electron beams with the use of a multichannel measuring ...
  • Investigation of system for external injection of H⁻ ion beam on cyclotrons 
    Veresov, O.L.; Grigorenko, S.V.; Strokach, A.P.; Udovichenko, S.Yu.; Tsygankov, S.S.; Zuev, Yu.V. (Вопросы атомной науки и техники, 2004)
    The article presents results of experimental studies carried out at an installation (“SVITS”) simulating a system for external injection of H⁻ions with the beam current of up to 2 mA and energy up to 30 keV for cyclotrons. ...
  • Investigation of the ceramic windows used in linear electron accelerators of the NSC KIPT 
    Dovbnya, A.N.; Zlunitsyn, E.S.; Zykov, A.I.; Kramskoy, G.D. (Вопросы атомной науки и техники, 2004)
    The results of investigations of HF windows on the basis of ceramic cones (CC) from klystrons KIU-12АM are presented. Phenomena of “locking” of the windows and stationary shining of CC are studied. Their physical models are ...
  • Investigation of the energy deposition profile in NaCl under electron irradiation 
    Gann, V.V.; den Hartog, H.W.; Vainshtein, D.I. (Вопросы атомной науки и техники, 2004)
    We have proposed a new model for the calculation of the absorbed dose profile in a thick target under 0.1…3 MeV electron irradiation. The build-up phenomenon is shown to increase the maximum of the energy deposition profile ...
  • Investigation of the hollow beam structure on optical transition radiaton 
    Ayzatsky, M.I.; Kushnir, V.A.; Mytrochenko, V.V.; Opanasenko, A.; Zhiglo, V. (Вопросы атомной науки и техники, 2004)
    The features of studying the structure of a dense annular beam with OTR from metal targets at electron energy ≤ 50 keV are described. The image of the cross section of the annular beam with sub-millimeter wall thickness ...

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