59 research outputs found

    Noise-resistant and mechanically strong Rogowski coils used to measure parameters of high-current pulses with nanosecond front

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    There are presented the characteristics of two versions of Rogowski coils with single- or multi-layer coil wound with a screened wire and with the toroidal core made of metal.ΠŸΡ€ΠΈΠ²Π΅Π΄Π΅Π½ΠΎ характСристики Π΄Π²ΠΎΡ… Π²Π°Ρ€Ρ–Π°Π½Ρ‚Ρ–Π² поясів Роговського c ΠΎΠ΄Π½ΠΎ- Π°Π±ΠΎ Π±Π°Π³Π°Ρ‚ΠΎΡˆΠ°Ρ€ΠΎΠ²ΠΎΡŽ ΠΊΠΎΡ‚ΡƒΡˆΠΊΠΎΡŽ, Π½Π°ΠΌΠΎΡ‚Π°Π½ΠΎΡŽ Π΅ΠΊΡ€Π°Π½ΠΎΠ²Π°Π½ΠΈΠΌ ΠΏΡ€ΠΎΠ²ΠΎΠ΄ΠΎΠΌ, Ρ– Π· Ρ‚ΠΎΡ€ΠΎΡ—Π΄Π°Π»ΡŒΠ½ΠΈΠΌ осСрдям Π· ΠΌΠ΅Ρ‚Π°Π»Ρƒ.ΠŸΡ€ΠΈΠ²Π΅Π΄Π΅Π½Ρ‹ характСристики Π΄Π²ΡƒΡ… Π²Π°Ρ€ΠΈΠ°Π½Ρ‚ΠΎΠ² поясов Роговского c ΠΎΠ΄Π½ΠΎ- ΠΈΠ»ΠΈ многослойной ΠΊΠ°Ρ‚ΡƒΡˆΠΊΠΎΠΉ, Π½Π°ΠΌΠΎΡ‚Π°Π½Π½ΠΎΠΉ экранированным ΠΏΡ€ΠΎΠ²ΠΎΠ΄ΠΎΠΌ, ΠΈ с Ρ‚ΠΎΡ€ΠΎΠΈΠ΄Π°Π»ΡŒΠ½Ρ‹ΠΌ сСрдСчником ΠΈΠ· ΠΌΠ΅Ρ‚Π°Π»Π»Π°

    Liquid resistors in accelerators of pulse electron beams

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    There are presented the characteristics of developed high-power high-voltage tight resistors based on water solutions of salts, acids and their mixtures as applied to their use in assemblies of linear induction accelerators (LIA) of high-current electron beams.ΠŸΡ€ΠΈΠ²Π΅Π΄Π΅Π½Ρ‹ характСристики Ρ€Π°Π·Ρ€Π°Π±ΠΎΡ‚Π°Π½Π½Ρ‹Ρ… ΠΌΠΎΡ‰Π½Ρ‹Ρ… Π²Ρ‹ΡΠΎΠΊΠΎΠ²ΠΎΠ»ΡŒΡ‚Π½Ρ‹Ρ… Π³Π΅Ρ€ΠΌΠ΅Ρ‚ΠΈΡ‡Π½Ρ‹Ρ… рСзисторов Π½Π° основС Π²ΠΎΠ΄Π½Ρ‹Ρ… растворов солСй, кислот ΠΈ ΠΈΡ… смСсСй ΠΏΡ€ΠΈΠΌΠ΅Π½ΠΈΡ‚Π΅Π»ΡŒΠ½ΠΎ ΠΊ использованию Π² ΡƒΠ·Π»Π°Ρ… Π»ΠΈΠ½Π΅ΠΉΠ½Ρ‹Ρ… ΠΈΠ½Π΄ΡƒΠΊΡ†ΠΈΠΎΠ½Π½Ρ‹Ρ… ускоритСлСй ΡΠΈΠ»ΡŒΠ½ΠΎΡ‚ΠΎΡ‡Π½Ρ‹Ρ… ΠΏΡƒΡ‡ΠΊΠΎΠ² элСктронов.НавСдСно характСристики Ρ€ΠΎΠ·Ρ€ΠΎΠ±Π»Π΅Π½ΠΈΡ… ΠΏΠΎΡ‚ΡƒΠΆΠ½ΠΈΡ… Π²ΠΈΡΠΎΠΊΠΎΠ²ΠΎΠ»ΡŒΡ‚Π½ΠΈΡ… Π³Π΅Ρ€ΠΌΠ΅Ρ‚ΠΈΡ‡Π½ΠΈΡ… рСзисторів Π½Π° основі водяних Ρ€ΠΎΠ·Ρ‡ΠΈΠ½Ρ–Π² солСй, кислот Ρ– Ρ—Ρ…Π½Ρ–Ρ… ΡΡƒΠΌΡ–ΡˆΠ΅ΠΉ стосовно Π΄ΠΎ використання Ρƒ Π²ΡƒΠ·Π»Π°Ρ… Π»Ρ–Π½Ρ–ΠΉΠ½ΠΈΡ… Ρ–Π½Π΄ΡƒΠΊΡ†Ρ–ΠΉΠ½ΠΈΡ… ΠΏΡ€ΠΈΡΠΊΠΎΡ€ΡŽΠ²Π°Ρ‡Ρ–Π² потуТнострумових ΠΏΡƒΡ‡ΠΊΡ–Π² Π΅Π»Π΅ΠΊΡ‚Ρ€ΠΎΠ½Ρ–Π²

    The Accidental Terrorist: Okhrana Connections to the Extreme-Right and the Attempt to Assassinate Sergei Witte in 1907

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    This article represents a case study in the relationship between the tsarist secret police (commonly known as the Okhrana in the West and okhranka in Russia) and acts of political terror perpetrated by the extreme-right in late imperial Russia. This specific case concerns the tangled web of conspiracy, propaganda and controversy that surrounded the attempted assassination of former-Chairman of the Council of Ministers, Sergei Witte, in 1907

    A 800-kV and 32-kJ pulse generator

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    The characteristics of oil-insulated 8-stage Marx generator aimed at charging water-insulated line of STRAUS-R electron beam accelerator are presented. Two IEPM-100-0.4 capacitors are installed in each stage. Switches in the first three stage are 100-kV gas-filled trigatrons while in other stages – two-electrode trigatrons. Operation delay time is 108Β±5 ns at electric strength reserve of each switch being equal to ~ 80%. The circuit inductance is ~1.4 Β΅H.ΠŸΡ€ΠΈΠ²Π΅Π΄Π΅Π½Ρ‹ характСристики маслоизолированного восьмикаскадного Π³Π΅Π½Π΅Ρ€Π°Ρ‚ΠΎΡ€Π° (Π“Π˜Π) ΠΡ€ΠΊΠ°Π΄ΡŒΠ΅Π²Π°-ΠœΠ°Ρ€ΠΊΡΠ° для зарядки Π΄ΠΎ 700 ΠΊΠ’ Π·Π° < 1 мкс Π²ΠΎΠ΄ΠΎΠΈΠ·ΠΎΠ»ΠΈΡ€ΠΎΠ²Π°Π½Π½ΠΎΠΉ Π»ΠΈΠ½ΠΈΠΈ ускоритСля ΠΏΡƒΡ‡ΠΊΠ° элСктронов БВРАУБ-Π . Π’ ΠΊΠ°ΠΆΠ΄ΠΎΠΌ каскадС установлСно ΠΏΠΎ Π΄Π²Π° кондСнсатора ИЭПМ-100-0.4. ΠšΠΎΠΌΠΌΡƒΡ‚Π°Ρ‚ΠΎΡ€Ρ‹ Π² ΠΏΠ΅Ρ€Π²Ρ‹Ρ… Ρ‚Ρ€Π΅Ρ… каскадах – Π³Π°Π·ΠΎΠ½Π°ΠΏΠΎΠ»Π½Π΅Π½Π½Ρ‹Π΅ Ρ‚Ρ€ΠΈΠ³Π°Ρ‚Ρ€ΠΎΠ½Ρ‹ Π½Π° 100 ΠΊΠ’, Π² ΠΎΡΡ‚Π°Π»ΡŒΠ½Ρ‹Ρ… – двухэлСктродныС. ВрСмя Π·Π°Π΄Π΅Ρ€ΠΆΠΊΠΈ срабатывания 108+-5 нс ΠΏΡ€ΠΈ запасС элСктропрочности ΠΊΠ°ΠΆΠ΄ΠΎΠ³ΠΎ разрядника Μ΄ 80%. Π˜Π½Π΄ΡƒΠΊΡ‚ΠΈΠ²Π½ΠΎΡΡ‚ΡŒ ΠΊΠΎΠ½Ρ‚ΡƒΡ€Π° Π“Π˜Π Μ΄ 1,4 ΠΌΠ½Π“Π½.НавСдСно характСристики ΠΌΠ°ΡΠ»ΠΎΡ–Π·ΠΎΠ»ΡŒΠΎΠ²Π°Π½ΠΎΠ³ΠΎ восьмикаскадного Π³Π΅Π½Π΅Ρ€Π°Ρ‚ΠΎΡ€Π° (ГІН) ΠΡ€ΠΊΠ°Π΄ΡŒΡ”Π²Π°-ΠœΠ°Ρ€ΠΊΡΠ° для зарядки Π΄ΠΎ 700 ΠΊΠ’ Π·Π° 1 мкс Π²ΠΎΠ΄ΠΎΡ–Π·ΠΎΠ»ΡŒΠΎΠ²Π°Π½ΠΎΡ— Π»Ρ–Π½Ρ–Ρ— ΠΏΡ€ΠΈΡΠΊΠΎΡ€ΡŽΠ²Π°Ρ‡Π° ΠΏΡƒΡ‡ΠΊΠ° Π΅Π»Π΅ΠΊΡ‚Ρ€ΠΎΠ½Ρ–Π² БВРАУБ-Π . Π£ ΠΊΠΎΠΆΠ½ΠΎΠΌΡƒ каскаді встановлСно ΠΏΠΎ Π΄Π²Π° кондСнсатора Π†Π•ΠŸΠœ-100-0.4. ΠšΠΎΠΌΡƒΡ‚Π°Ρ‚ΠΎΡ€ΠΈ Π² ΠΏΠ΅Ρ€ΡˆΠΈΡ… Ρ‚Ρ€ΡŒΠΎΡ… каскадах – Π³Π°Π·ΠΎΠ½Π°ΠΏΠΎΠ²Π½Π΅Π½Ρ– Ρ‚Ρ€ΠΈΠ³Π°Ρ‚Ρ€ΠΎΠ½ΠΈ Π½Π° 100 ΠΊΠ’, Π² Ρ–Π½ΡˆΠΈΡ… – Π΄Π²ΠΎΡ…Π΅Π»Π΅ΠΊΡ‚Ρ€ΠΎΠ΄Π½Ρ–. Час Π·Π°Ρ‚Ρ€ΠΈΠΌΠΊΠΈ ΡΠΏΡ€Π°Ρ†ΡŒΠΎΠ²ΡƒΠ²Π°Π½Π½Ρ 108+-5 нс ΠΏΡ€ΠΈ запасі СлСктроміцності ΠΊΠΎΠΆΠ½ΠΎΠ³ΠΎ розрядника Μ΄ 80%. Π†Π½Π΄ΡƒΠΊΡ‚ΠΈΠ²Π½Ρ–ΡΡ‚ΡŒ ΠΊΠΎΠ½Ρ‚ΡƒΡ€Ρƒ ГІН Μ΄ 1,4 ΠΌΠΊΠ“Π½

    Complexes on the basis of high-current linear induction accelerators and pulse nuclear reactors

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    Compton Scattering and the Spin Structure of the Nucleon at Low Energies

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    We analyze polarized Compton scattering which provides information on the spin-structure of the nucleon. For scattering processes with photon energies up to 100 MeV the spin-structure dependence can be encoded into four independent parameters-the so-called spin-polarizabilities Ξ³i,i=1...4\gamma_i, i=1...4 of the nucleon, which we calculate within the framework of the "small scale expansion" in SU(2) baryon chiral perturbation theory. Specific application is made to "forward" and "backward" spin- polarizabilities.Comment: 8 pages revtex file, separation between pion-pole and regular contributions detailed + minor wording changes, results and conclusions unchange

    Vector meson production and nucleon resonance analysis in a coupled-channel approach for energies m_N < sqrt(s) < 2 GeV II: photon-induced results

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    We present a nucleon resonance analysis by simultaneously considering all pion- and photon-induced experimental data on the final states gamma N, pi N, 2 pi N, eta N, K Lambda, K Sigma, and omega N for energies from the nucleon mass up to sqrt(s) = 2 GeV. In this analysis we find strong evidence for the resonances P_{31}(1750), P_{13}(1900), P_{33}(1920), and D_{13}(1950). The omega N production mechanism is dominated by large P_{11}(1710) and P_{13}(1900) contributions. In this second part we present the results on the photoproduction reactions and the electromagnetic properties of the resonances. The inclusion of all important final states up to sqrt(s) = 2 GeV allows for estimates on the importance of the individual states for the GDH sum rule.Comment: 41 pages, 26 figures, discussion extended, typos corrected, references updated, to appear in Phys. Rev.

    Method of evaluation of output call at normal laws of distribution noise background and characteristics of dynamic collections

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    Π—Π°ΠΏΡ€ΠΎΠΏΠΎΠ½ΠΎΠ²Π°Π½ΠΈΠΉ удосконалСний ΠΌΠ΅Ρ‚ΠΎΠ΄ ΠΎΠ±Ρ€ΠΎΠ±ΠΊΠΈ Π²ΠΈΡ…Ρ–Π΄Π½ΠΈΡ… сигналів ΠΏΡ€ΠΈ Π²ΠΈΠ·Π½Π°Ρ‡Π΅Π½Π½Ρ– Ρ‚Π΅Ρ…Π½Ρ–Ρ‡Π½ΠΎΠ³ΠΎ стану Π΄ΠΈΠ½Π°ΠΌΡ–Ρ‡Π½ΠΈΡ… систСм. Π ΠΎΠ·Ρ€ΠΎΠ±Π»Π΅Π½ΠΈΠΉ ΠΌΠ΅Ρ‚ΠΎΠ΄ΠΈ дозволяє спростити ΠΎΠΏΡ‚ΠΈΠΌΠ°Π»ΡŒΠ½Ρ– ΠΌΠ΅Ρ‚ΠΎΠ΄ΠΈ ΠΎΠ±Ρ€ΠΎΠ±ΠΊΠΈ Π²ΠΈΡ…Ρ–Π΄Π½ΠΈΡ… сигналів для Π²ΠΈΠΏΠ°Π΄ΠΊΡƒ Π½ΠΎΡ€ΠΌΠ°Π»ΡŒΠ½ΠΈΡ… Ρ€ΠΎΠ·ΠΏΠΎΠ΄Ρ–Π»Ρ–Π² ΠΏΠ΅Ρ€Π΅ΡˆΠΊΠΎΠ΄ΠΈ Ρ‚Π° ΠΏΠ°Ρ€Π°ΠΌΠ΅Ρ‚Ρ€Ρ–Π² ΠΊΠΎΠ½Ρ‚Ρ€ΠΎΠ»ΡŽ Π΄ΠΈΠ½Π°ΠΌΡ–Ρ‡Π½ΠΈΡ… систСм. Π¦Π΅ΠΉ ΠΌΠ΅Ρ‚ΠΎΠ΄ дозволяє ΠΏΡ–Π΄Π²ΠΈΡ‰ΠΈΡ‚ΠΈ ΠΏΠ΅Ρ€Π΅ΡˆΠΊΠΎΠ΄ΠΎΠ·Π°Ρ…ΠΈΡ‰Π΅Π½Ρ–ΡΡ‚ΡŒ Ρ– Ρ‚ΠΎΡ‡Π½Ρ–ΡΡ‚ΡŒ ΠΏΡ€ΠΈ ΠΎΠ±Ρ€ΠΎΠ±Ρ†Ρ– Π²ΠΈΡ…Ρ–Π΄Π½ΠΈΡ… Π²ΠΈΠΌΡ–Ρ€ΡŽΠ²Π°Π»ΡŒΠ½ΠΈΡ… сигналів Ρ– ΠΏΡ–Π΄Π²ΠΈΡ‰ΠΈΡ‚ΠΈ ΠΎΠΏΠ΅Ρ€Π°Ρ‚ΠΈΠ²Π½Ρ–ΡΡ‚ΡŒ визначСння Ρ‚Π΅Ρ…Π½Ρ–Ρ‡Π½ΠΎΠ³ΠΎ стану Π΄ΠΈΠ½Π°ΠΌΡ–Ρ‡Π½ΠΈΡ… систСм.ΠŸΡ€Π΅Π΄Π»ΠΎΠΆΠ΅Π½ ΡƒΡΠΎΠ²Π΅Ρ€ΡˆΠ΅Π½ΡΡ‚Π²ΠΎΠ²Π°Π½Π½Ρ‹ΠΉ ΠΌΠ΅Ρ‚ΠΎΠ΄ ΠΎΠ±Ρ€Π°Π±ΠΎΡ‚ΠΊΠΈ Π²Ρ‹Ρ…ΠΎΠ΄Π½Ρ‹Ρ… сигналов ΠΏΡ€ΠΈ ΠΎΠΏΡ€Π΅Π΄Π΅Π»Π΅Π½ΠΈΠΈ тСхничСского состояния динамичСских систСм. Π Π°Π·Ρ€Π°Π±ΠΎΡ‚Π°Π½Π½Ρ‹ΠΉ ΠΌΠ΅Ρ‚ΠΎΠ΄Ρ‹ позволяСт ΡƒΠΏΡ€ΠΎΡΡ‚ΠΈΡ‚ΡŒ ΠΎΠΏΡ‚ΠΈΠΌΠ°Π»ΡŒΠ½Ρ‹Π΅ ΠΌΠ΅Ρ‚ΠΎΠ΄Ρ‹ ΠΎΠ±Ρ€Π°Π±ΠΎΡ‚ΠΊΠΈ Π²Ρ‹Ρ…ΠΎΠ΄Π½Ρ‹Ρ… сигналов для случая Π½ΠΎΡ€ΠΌΠ°Π»ΡŒΠ½Ρ‹Ρ… распрСдСлСний ΠΏΠΎΠΌΠ΅Ρ…ΠΈ ΠΈ ΠΏΠ°Ρ€Π°ΠΌΠ΅Ρ‚Ρ€ΠΎΠ² контроля динамичСских систСм. Π­Ρ‚ΠΎΡ‚ ΠΌΠ΅Ρ‚ΠΎΠ΄ позволяСт ΠΏΠΎΠ²Ρ‹ΡΠΈΡ‚ΡŒ ΠΏΠΎΠΌΠ΅Ρ…ΠΎΠ·Π°Ρ‰ΠΈΡ‰Π΅Π½Π½ΠΎΡΡ‚ΡŒ ΠΈ Ρ‚ΠΎΡ‡Π½ΠΎΡΡ‚ΡŒ ΠΏΡ€ΠΈ ΠΎΠ±Ρ€Π°Π±ΠΎΡ‚ΠΊΠ΅ Π²Ρ‹Ρ…ΠΎΠ΄Π½Ρ‹Ρ… ΠΈΠ·ΠΌΠ΅Ρ€ΠΈΡ‚Π΅Π»ΡŒΠ½Ρ‹Ρ… сигналов ΠΈ ΠΏΠΎΠ²Ρ‹ΡΠΈΡ‚ΡŒ ΠΎΠΏΠ΅Ρ€Π°Ρ‚ΠΈΠ²Π½ΠΎΡΡ‚ΡŒ опрСдСлСния тСхничСского состояния динамичСских систСм.The improved method of treatment of output calls is offered at definition of engineering condition of dynamic collections. Designed allows to simplify methods optimum methods of treatment of output calls for the case of normal distributions of noise background and characteristics of check of dynamic collections. This method allows to improve protecting from a noise and exactness at treatment of output measuring calls and to decrease time of definition of engineering condition of dynamic collections

    New complexes of gadolinium with dicarboxylate diphosphabetaines

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    The processes of complexation of dicarboxylate diphosphabetaines with gadolinium nitrate were studied, as a result of which stable polymer metal complexes insoluble in inorganic and organic solvents were obtained. To carry out these reactions, dicarboxylate diphosphabetaines were previously synthesized: 3,3'-(propane-1,3-diylbis (diphenyl)phosphoniondiyl)dipropanoate and 3,3'-(hexane-1,3-diylbis (diphenyl)phosphoniondiyl)dipropanoate, based on maleic acid with 1,3-bis(diphenylphosphino)bisphosphinspropane and 1,6-bis(diphenylphosphino)bisphosphinshexane. The structure of dicarboxylate diphosphabetaines and poly-nuclear polymer complexes of gadolinium has been confirmed by modern physical and chemical methods of research, including NMR and IR spectra, elemental and X-ray structural analysis, thermal stability has been studied by simultaneous thermogravimetry and differential scanning calorimetry
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