Basic Laws Describing of the Impulse Electric Strength of Liquids

Ushakov, V. Ya.

doi:10.1007/978-3-540-72760-6_6

Cited by 31 publications

(55 citation statements)

References 11 publications

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“…A simple assumption that the electric field in the vicinity of the filament tip is approximately invariant regardless of the variable average electric field in the space between the electrodes (which is proportional to the electrode potential) cannot explain this phenomenon. It is known that the propagation speed of the plasma filaments increases with increasing average electric field, 7,11) provided that the field at the filament tip increases. Therefore, another explanation must be considered.…”

Section: Discussionmentioning

confidence: 99%

“…The process stops when (1) the breakdown voltage of the gaseous channel becomes higher than the voltage along the channel or (2) when the electric field at the active tip of one of the streamers becomes so high that secondary luminous streamers can be formed. 8,[10][11][12][13][14][15] Secondary luminous streamers that often develop in the region perturbed by the primary non-luminous filaments; they produce intense ultraviolet-visible-near-infra-red (UV-vis-NIR) emission. 16,17) Secondary luminous streamers regularly have a simpler filamentary structure and channel diameters that are significantly larger (roughly in the 5-25 μm range) compared to primary streamers, and they propagate faster than the primary streamers.…”

Section: Introductionmentioning

confidence: 99%

“…18) The phase transition requires an increase in the liquid specific volume, and this change is accompanied by production of shockwaves. 11) Their analysis is the focus of this paper.…”

Section: Introductionmentioning

confidence: 99%

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Picosecond interferometry and analysis of pressure fields around nanosecond microdischarge filaments that develop in deionized water

Hoffer

Prukner

Schmidt

et al. 2020

Jpn. J. Appl. Phys.

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This study investigated pressure fields that develop around nanosecond discharges produced in deionised water by fast rise-time positive highvoltage pulses (+100 kV, duration 10 ns) on a point electrode by means of laser interferometry with high spatial resolution (0.75 μm). The concept of the Mach-Zehnder interferometer was employed using Nd:YAG laser (532 nm, 30 ps). Changes in the liquid refractive index produced a shift in the fringes in interference patterns projected by the interferometer. High spatial resolution combined with the ultrafast laser source allowed the acquisition of interferometric images at any phase of the discharge evolution. Consequently, unique results were obtained that characterised pressure fields that develop due to the propagation of a single discharge filament. The peak pressure of 500 MPa was estimated at the shock front with a radius of 2 μm; the generating filament was invisible at this early stage. The shockwave amplitudes were probably voltage independent.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Picosecond interferometry and analysis of pressure fields around nanosecond microdischarge filaments that develop in deionized water

Hoffer

Prukner

Schmidt

et al. 2020

Jpn. J. Appl. Phys.

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show abstract

“…When considering the polarity of liquids, there exists a distinction between nonpolar dielectrics, e.g., castor oil, and polar dielectrics, e.g., water, which is also reflected in the functional dependency of permittivity on the density. 12) For nonpolar liquids, this relationship is described by the Clausius-Mossotti equation, 13) from where…”

Section: Theory Of Electrostrictionmentioning

confidence: 99%

On two optomechanical effects of laser-induced electrostriction in dielectric liquids

Gojani

Bejtullahu

Obayashi

2014

Jpn. J. Appl. Phys.

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This paper presents electrostriction from the phenomenological perspective, and gives details on two mechanical effects arising from lasermatter interaction. Electrostriction is the tendency of materials to compress in the presence of a varying electric field. In this paper, the investigated materials are polar and nonpolar dielectric liquids. It is stressed that the dominant factor is the time evolution of the laser pulse, which causes tensile stresses and acoustic waves. The study is supported by experimental realization of electrostriction, which can be detected only at favourable conditions (observed in water, but not in castor oil). This study will shed light in developing measurement techniques (e.g., laser-induced grating spectroscopy) and in explaining the onset of cavities and laser-induced liquid breakdown.

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“…Statistical aspects of electron emission and electron avalanche multiplication are important for the study of electrical breakdown of gases and gas discharges [1][2][3][4], the electrical breakdown of liquid and solid dielectrics [5,6] and for the operation of radiation and particle detectors [7][8][9][10]. The electron emission and the electron avalanche multiplication are stochastic processes and their fluctuations basically determine the detector resolution.…”

Section: Introductionmentioning

confidence: 99%

Electron avalanche statistics for multielectron initiation with homogeneous and inhomogeneous Poisson emission

Marković¹,

Stamenković²,

Jovanović³

2019

J. Inst.

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The electron avalanche statistics for a single and multielectron initiation and a fixed number of initiating electrons is successfully described by a geometric and a single negative binomial distribution (NBD). However, the number of initiating electrons may have a statistical distribution, either stationary or variable with time. When the emission of initiating electrons is a homogeneous (stationary) and an inhomogeneous (non-stationary) Poisson process, the weighted mixtures of NBDs for electron avalanche statistics are applied and discussed. The proposed statistical model is tested by the means of Monte Carlo simulation of avalanche size distributions when the initial electrons obey Poisson distribution and a good agreement is found. K: Charge transport and multiplication in gas; Detector modelling and simulations II (electric fields, charge transport, multiplication and induction, pulse formation, electron emission, etc); Analysis and statistical methods; Gaseous detectors 1Corresponding author.

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Basic Laws Describing of the Impulse Electric Strength of Liquids

Cited by 31 publications

References 11 publications

Picosecond interferometry and analysis of pressure fields around nanosecond microdischarge filaments that develop in deionized water

Picosecond interferometry and analysis of pressure fields around nanosecond microdischarge filaments that develop in deionized water

On two optomechanical effects of laser-induced electrostriction in dielectric liquids

Electron avalanche statistics for multielectron initiation with homogeneous and inhomogeneous Poisson emission

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