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Перегляд Вопросы атомной науки и техники, 2004, № 2 за датою випуску

Репозиторій DSpace/Manakin

Перегляд Вопросы атомной науки и техники, 2004, № 2 за датою випуску

Сортувати за: Порядок: Результатів:

  • 200 kV pulse modulator for power supply of VEPP-5 injection complex electron gun 
    Akimov, V.E.; Kazarezov, I.V.; Korepanov, A.A. (Вопросы атомной науки и техники, 2004)
    This paper describes a new 200 kV pulse modulator for the VEPP-5 complex preinjector electron gun. The pulse former is based on the solid state IGBT-switch and the new high turn ratio pulse transformer (PT). New design allows ...
  • Characteristics of inhomogeneous accelerating structures 
    Ayzatsky, M.I.; Kramarenko, K.Yu. (Вопросы атомной науки и техники, 2004)
    We present the results of investigations of accelerating structures consisting of a segment of an inhomogeneous disk-loaded waveguide, input and output couplers. The sizes of the apertures inside the waveguide take random ...
  • RF pulsed measurements at the TNK linear accelerator-injector 
    Belova, L.L.; Chernov, K.N.; Ostreiko, G.N.; Serdobintsev, G.V.; Tarnetsky, V.V. (Вопросы атомной науки и техники, 2004)
    Measurements of RF pulse signals in megawatt circuits are an important problem of acceleration technique. Measuring circuits should not degrade WSVR in power transmitting channels or give rise to local electric ...
  • Application of software and hardware components of CAN-technology for accelerator control 
    Chepurnov, A.; Nedeoglo, F.; Etenko, A.; Sabelnikov, A. (Вопросы атомной науки и техники, 2004)
    CAN-technology was developed for embedded hard real time automotive applications. CAN-bus together with high-level application protocols is used now to control large experimental installations and particle accelerators. ...
  • Analog computation of transients in the power amplifier of DTL RF system 
    Kvasha, A.I. (Вопросы атомной науки и техники, 2004)
    Some peculiarities of DTL pulse RF system operation are connected with its load – a high quality factor cavity. In case of coinciding of tank and feeder frequencies overvoltages may appear at the falling edge of RF pulse ...
  • Microwave feeding system elements of superconducting linear collider cavities 
    Bogdanovich, B.Yu.; Bezkrovny, P.A.; Kaminsky, V.I.; Lalayan, M.V.; Sobenin, N.P.; Zavadtsev, D.A. (Вопросы атомной науки и техники, 2004)
    The calculation and experimental results for a magic tee with movable choke plungers in Е- and Н -arms for tuning the coupling-factor and RF phase of high-power accelerating cavities are presented. The investigations were ...
  • Numerical study of the centre region acceleration for the RIC-30 cyclotron 
    Andreeva, Z.A.; Svistunov, Yu.A.; Silaev, S.A.; Stepanov, A.V. (Вопросы атомной науки и техники, 2004)
    The RIC-30 cyclotron was designed for acceleration of protons up to 30 MeV [1]. Since 1994 it has been used for production of radionuclides on internal target installed at a radius of 580 mm, where the beam energy equals 22 ...
  • Calculation of thermal transient condition in the biperiodic accelerating structure 
    Zavadtsev, D.A. (Вопросы атомной науки и техники, 2004)
    RF power distribution as well as deformation and resonance frequency of the structure after stepped changing of RF power or cooling water temperature were investigated. Transient process is not exponential. Effective time ...
  • 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 ...
  • The use of series BA permanent magnets in steerers of the beam extracted from the electron linac 
    Dovbnya, A.N.; Myakushko, L.K.; Tolstoj, A.E.; Shendrik, V.A. (Вопросы атомной науки и техники, 2004)
    Relying on the results of test bench simulation and magnetic measurements, barium plates BA (typical size is 180x80x16 mm) were used to manufacture “dipole magnet”-type units with a constant field of intensity up to 1.8 ...
  • On possibilities of diagnostics and formation of picosecond electron bunches in the linear accelerator by means of an optical deflector 
    Dyomin, V.S.; Reprintsev, L.V.; Shendrik, V.A. (Вопросы атомной науки и техники, 2004)
    The possibilities for measuring the phase charge distribution in picosecond bunches of the electron linac without application of an electron-optical chamber are discussed. It is proposed to use the measurement scheme based ...
  • The VEPP-5 injection complex modulator revision and operational experience 
    Akimov, A.V.; Bak, P.A.; Gusev, E.A.; Kazarezov, I.V.; Kot, N.H.; Chupyra, A.G.; Petrov, S.P.; Yudin, V.D. (Вопросы атомной науки и техники, 2004)
    For the VEPP-5 injection complex klystrons (5045, SLAC Lab., USA) power supply the four modulators producing a pulse voltage of 23.5 kV, a current of 6.3 kA, a pulse-top-duration of 3.7 µs are used. The modulator scheme ...
  • 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 ...
  • The system of encloused optical cavities as a tool for laser photons storing 
    Androsov, V.P.; Karnaukhov, I.M.; Telegin, Yu.N. (Вопросы атомной науки и техники, 2004)
    The calculation of the system consisting of two optical cavities enclosed one into another is performed in the plane-wave approximation. It is shown that under definite conditions one can obtain an enhancement of the ...
  • Approximations of operating characteristics of the elliptic cross-section beam position monitors 
    Ivashchenko, V.E.; Karnaukhov, I.M.; Trotsenko, V.I.; Shcherbakov, A.A. (Вопросы атомной науки и техники, 2004)
    In the specialized storage rings it is necessary to measure a position of a beam with an absolute accuracy up to 10 µm that corresponds to a relative accuracy about 10⁻³ for the central region of a monitor. The position ...
  • Surface wave plasma source for broad-beam ion and electron production 
    Azarenkov, N.A.; Bizyukov, A.A.; Gapon, A.V.; Olefir, V.P.; Kashaba, A.Y.; Sereda, K.N.; Tarasov, I.K. (Вопросы атомной науки и техники, 2004)
    The new type of multipurpose plasma source based on the surface wave sustained discharge is presented. The plasma in the source is generated by the RF surface wave discharge excited by the antenna system placed inside ...
  • Solid ion accelerator based on magnetron sputtering discharge 
    Azarenkov, N.A.; Bizyukov, I.A.; Kashaba, A.Y.; Sereda, K.N. (Вопросы атомной науки и техники, 2004)
    A new solid ion accelerator based on magnetron sputtering discharge is described. The ions of working gas are used to bombard and sputter a cylindrical target made of metal or dielectric material. The sputtered atoms can ...
  • 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 ...
  • Measurement of phase-energy electron distribution at the RF gun exit using alfa-magnet 
    Kushnir, V.A.; Mitrochenko, V.V. (Вопросы атомной науки и техники, 2004)
    The paper presents the results of measuring the electron phase-energy distribution at the exit of the S-band nanosecond photo RF gun. The RF gun is the electron source of the injector system of linac LU-60. The main bunching ...
  • 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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