Electric strength of a vacuum gap during breakdown in an inhomogeneous electric field for switching high-power pulses

Dolgachev, G. I.; Maslennikov, D. D.; Ushakov, A.G.; Fedotkin, A. S.; Khodeev, I. A.

doi:10.1134/s0020441207030153

Cited by 3 publications

(2 citation statements)

References 3 publications

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“…Note that vacuum low-inductive dischargers switching the current pulses at megavolt voltages for the time less than 10 ns have been developed under the BAIKAL program [15].…”

Section: Issues Of Shaping Of High-power Current Pulses By An Electri...mentioning

confidence: 99%

An ICF system based on Z-pinch radiation produced by an explosive magnetic generator

Garanin¹,

Ivanovsky²,

Mkhitariyan³

2011

Nucl. Fusion

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It is known that a thermonuclear target can be ignited by an implosion accomplished with X-radiation generated by means of laser radiation conversion or by a Z pinch formed by a high-power current pulse. For these purposes laser facility NIF has been constructed in the USA, ‘Megajoule’ is being constructed in France and there is a project of laser facility UFL in Russia. The project of stationary facility X has been developed in SNL USA to produce a Z pinch capable of generating an x-ray pulse with parameters close to the ignition threshold. There is a great chance, however, that the already tested technologies, including disc explosive magnetic generators (DEMG), systems of current peaking based on electrically exploded foil opening switches and high-voltage switching devices, allow the intriguing problem of the ignition feasibility to be solved and the quickest and cheapest way to accomplish this to be provided. To explore this possibility, the paper will sequentially analyse the ignition conditions. The required parameters of Z pinch X-radiation and the size of the DEMG-based facility to obtain these parameters will be evaluated. Capabilities of the new current sources based on the DEMG and of the devices shaping a current pulse will be presented and compared with those required for the ignition.

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“…Note that vacuum low-inductive dischargers switching the current pulses at megavolt voltages for the time less than 10 ns have been developed under the BAIKAL program [15].…”

Section: Issues Of Shaping Of High-power Current Pulses By An Electri...mentioning

confidence: 99%

An ICF system based on Z-pinch radiation produced by an explosive magnetic generator

Garanin¹,

Ivanovsky²,

Mkhitariyan³

2011

Nucl. Fusion

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“…With the growing requirements for high-performance electronic devices, high energy storage density capacitors have become the heart component in pulse power systems. Therefore, tremendous efforts have been devoted to improve the energy storage characteristics of dielectric materials, utilizing phase boundary components, sintering process, grain size, phase purity, density, and so forth. − However, linear dielectrics, ferroelectrics (FEs), and relaxor FE materials have low energy storage properties. As emerging materials for capacitor applications, antiferroelectrics (AFEs) exhibit excellent electrical storage characteristics compared with linear dielectrics, FEs, and relaxor FEs because of their special AFE–FE phase transitions. , …”

Section: Introductionmentioning

confidence: 99%

Enhanced Energy Storage Density of Lead Lutetium Niobate Crystals by Electric Field-Induced Secondary Phase Transition via Na/La Codoping

Yang

Zhuo

Wang

et al. 2020

ACS Appl. Mater. Interfaces

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As emerging materials for capacitor applications, antiferroelectric (AFE) materials possess high energy storage density. AFE single crystals are conducive to studying the physical mechanism of AFE response. However, the preparation of AFE single crystals is a huge and long-standing challenge. Herein, we report the effect of Na/La codoping on the energy storage properties and phase transition of Pb(Lu1/2Nb1/2)O3 (PLN) AFE single crystals. An enhanced recoverable energy storage density of 4.81 J/cm3 with a high energy efficiency of 82.36% is obtained, which is much larger than that of the PbZrO3- and PLN-based AFE crystals. Two superlattice reflections, which stem from the A-site Pb2+ ions and the ordered B-site ions, are identified by X-ray diffraction and selected-area electron diffraction. The domain structures demonstrated a high temperature stability of the AFE phase. A secondary ferroelectric phase transition is induced after codoping, resulting in a sharp improvement of polarization (12.5 μC/cm2), which contributes to the enormous enhancement of energy storage density. This multiphase transition is explained using the modified Ginzburg–Landau–Devonshire phenomenology.

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Thermonuclear ignition by Z-pinch X-ray radiation produced by current of an explosive magnetic generator

Гаранин

Ivanovskiy

2015

Phys. Atom. Nuclei

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Electric strength of a vacuum gap during breakdown in an inhomogeneous electric field for switching high-power pulses

Cited by 3 publications

References 3 publications

An ICF system based on Z-pinch radiation produced by an explosive magnetic generator

An ICF system based on Z-pinch radiation produced by an explosive magnetic generator

Enhanced Energy Storage Density of Lead Lutetium Niobate Crystals by Electric Field-Induced Secondary Phase Transition via Na/La Codoping

Thermonuclear ignition by Z-pinch X-ray radiation produced by current of an explosive magnetic generator

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