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14 Result(s)

within B. M. Kovalchuk Remove this filter Optics, Lasers, Photonics, Optical Devices Remove this filter

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  1. No Access

    Article

    Stability of Triggering of the Switch with Sharply Non-Uniform Electric Field at the Electrode with Negative Potential

    Results of investigations into a two-electrode high-pressure gas switch with sharply non-uniform field at the electrode with negative potential operating in the self-breakdown regime with pulsed charging of a ...

    B. M. Kovalchuk, A. A. Zherlitsyn, E. V. Kumpyak in Russian Physics Journal (2017)

  2. No Access

    Article

    Wide-aperture CO2 lasers pumped by electron-beam-controlled discharge

    Three powerful wide-aperture CO2 lasers with the wavelength λ = 1.06 μm (a laser pumped by electron-beam-controlled discharge, a high-pressure continuously tunable laser, and a repetitively pulsed laser) are crea...

    B. M. Kovalchuk, G. A. Mesyats, V. M. Orlovskii, V. F. Tarasenko in Laser Physics (2006)

  3. No Access

    Article

    High-power wide-aperture electron-beam-pumped lasers on dense gases

    Schemes of high-power electron-beam-pumped pulsed lasers on dense gases and the experimental results on the lasing on XeCl*, KrF*, and HF molecules are presented. The energy input and the kinetic processes in ...

    E. N. Abdullin, N. G. Ivanov, B. M. Kovalchuk, V. F. Losev, G. A. Mesyats… in Laser Physics (2006)

  4. No Access

    Article

    High-power excimer laser systems

    Two-high power excimer laser systems with square (25 × 25 cm) and circular (with a diameter of 40 cm) cross sections of the output laser beam are described. The first (second) system consists of four (five) ex...

    E. N. Abdullin, N. G. Ivanov, B. M. Kovalchuk, I. N. Konovalov… in Laser Physics (2006)

  5. No Access

    Article

    Wide-aperture CO2 lasers pumped with an electron-beam-controlled discharge

    This review paper presents the results obtained during the development and study of three high-power wide-aperture CO 2 lasers (λ=10.6 μm) pumped with a discharge controlled by ...

    Yu. I. Bychkov, B. M. Kovalchuk, G. P. Kuzmin, G. A. Mesyats… in Russian Physics Journal (2000)

  6. No Access

    Article

    Formation of wide-aperture electron beams in electron accelerators with explosive emission cathodes

    The problems concerning the formation of electron beams of microsecond duration, electron energy 500–600 keV, and current density up to 20–30 A/cm2 with a rectangular cross section of area 0.1–1 m2 in high-curren...

    E. N. Abdullin, G. P. Bazhenov, S. I. Gorbachev, B. M. Kovalchuk… in Russian Physics Journal (2000)

  7. No Access

    Article

    Electron-beam-pumped high-power wide-aperture exciplex lasers and laser systems

    High-efficiency, high-power pulsedXeCl * andKrF * lasers pumped with an electron beam and laser systems based on these lasers have been developed. This paper describes the principl...

    B. M. Kovalchuk, V. F. Losev, G. A. Mesyats, V. F. Tarasenko in Russian Physics Journal (2000)

  8. No Access

    Article

    Multichannel closing switch for water energy stores

    This paper describes a megavolt closing spark gap switch designed to switch water energy stores in pulse power generators. A peculiarity of the closing spark gap switch is the multichannel regime of the curren...

    S. I. Volkov, A. A. Kim, B. M. Kovalchuk, V. V. Kremnev… in Russian Physics Journal (1999)

  9. No Access

    Article

    Investigation of some versions of the pos-load transmission line

    Experiments on switching current into an inductive load with a plasma opening switch have been performed. The geometry of the transitory region between the plasma opening switch and the load for which complete...

    A. N. Bastrikov, A. A. Zherlitsyn, A. A. Kim, B. M. Kovalchuk… in Russian Physics Journal (1999)

  10. No Access

    Article

    Amplification of the power of a line transformer by series connection of plasma opening switches

    A circuit is proposed for increasing the power and voltage across the load in a generator based on a line pulse transformer. The power is amplified by series connection of plasma opening switches between the t...

    A. N. Bastrikov, A. A. Zherlitsyn, A. A. Kim, B. M. Kovalchuk… in Russian Physics Journal (1999)

  11. No Access

    Article

    Experiments on the GIT-4 with the load connected upstream of the plasma opening switch

    Experiments have been performed on the GIT-4 generator with a plasma opening switch to study the operation of a circuit connecting the load and the switch through an untriggered spark gap depending for its ope...

    A. N. Bastrikov, A. A. Zherlitsyn, A. A. Kim, B. M. Kovalchuk… in Russian Physics Journal (1999)

  12. No Access

    Article

    High-power nanosecond bipolar voltage pulses

    This paper presents the design and testing results for a generator of bipolar voltage pulses of amplitude ±200 kV, duration ∼3.5 ns, and repetition rate up to 100 Hz across a 12.5-Ω matched load. The mode of m...

    V. A. Vizir, V. B. Zorin, A. M. Efremov, B. M. Kovalchuk in Russian Physics Journal (1999)

  13. No Access

    Article

    Linear transformer driver with a 750-kA current and A 400-ns current risetime

    The paper describes the design and reports the results of tests of a linear transformer driver with the following parameters: stored energy 14 kJ, output voltage 90 kV, current amplitude in the secondary windi...

    A. A. Kim, B. M. Kovalchuk, E. V. Kumpyak, N. V. Tsoy in Russian Physics Journal (1999)

  14. No Access

    Article

    Foreword

    B. M. Kovalchuk in Russian Physics Journal (1997)