Implementation of Trigger Unit for Generation of High-Current-Density Electron Beam

Abhishek, Anand; Kumar, Niraj; Pal, Udit Narayan; Singh, Bhim; Akbar, Sheikh A.

doi:10.1109/ted.2021.3079290

Cited by 15 publications

(2 citation statements)

References 24 publications

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“…In order to put high-voltage pulsed discharge plasma technology into better use in industrial production, researchers are committed to the research and development of high-efficiency reactors. The improvement direction mainly includes the following aspects: (1) the effect of gas-liquid mass transfer needs to be further improved to increase the yield of free radicals, improve the spatial distribution of plasma, and optimize the mass transfer interface of the reactor; (2) a mixed gasliquid reactor was developed, which can make full use of the synergistic effect of gas-liquid combined discharge to stimulate the degradation activity of the reactor; and (3) other new reactors were developed [14]. Based on the analysis of the existing technology, the types of reactors used for high-voltage pulse discharge plasma mainly include the following.…”

Section: Methodsmentioning

confidence: 99%

Energy Plasma Graphite Wastewater Treatment System Based on Internet of Things Platform

Zhang

Song

2022

Wireless Communications and Mobile Computing

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If graphite plasma wastewater cannot be properly treated, it may cause serious pollution to the natural environment. In this paper, the conditions of wastewater degradation by high-voltage pulse discharge are optimized. On this basis, it is proposed to improve the discharge power supply and reactor to effectively strengthen the discharge and improve the degradation rate of organic matter. The wastewater is degraded by high-voltage pulse discharge and coagulation Fenton oxidation. The specific degradation effect is as follows: when the initial pH of aeration is about 10.00 mm and the initial pH of aeration is about 80 mm/L, the specific degradation effect of wastewater is about 1.00-200 mm. The degradation rate of chemical oxygen demand in 120 min can reach 49.84%. The graphite plasma wastewater treatment system designed based on the Internet of things platform has made a great contribution to the balance between industrial production and natural environment in China.

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Section: Methodsmentioning

confidence: 99%

Energy Plasma Graphite Wastewater Treatment System Based on Internet of Things Platform

Zhang

Song

2022

Wireless Communications and Mobile Computing

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“…In such systems at a low gas pressure, the volume of the cathode cavity can achieve 0.5 m 3 [3,4]. The application of the steady-state and pulsed discharges with a hollow cathode in obtaining electron and ion beams should also be mentioned [2,[8][9][10][11][12][13]. * Author to whom any correspondence should be addressed.…”

Section: Introductionmentioning

confidence: 99%

Operating modes in a low-pressure glow discharge with hollow cathode

Korolev¹,

Landl²,

Франц³

et al. 2022

Plasma Sources Sci. Technol.

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The paper deals with the investigations of the discharge in hydrogen in the conditions close to that for the trigger units of the pseudospark switches. The following modes of discharge sustaining are classified: the Townsend discharge, the suppressed glow discharge with hollow cathode, the intermediate mode of the gradual transition from the suppressed discharge to the ordinary glow discharge, and the ordinary discharge in which the negative glow plasma occupies the whole depth of the cathode cavity. As applied to the ordinary discharge, the theoretical model that offers a possibility to estimate the negative glow parameters is developed. In the current range (1.6–10) mA the electron densities in the negative glow region are (1.7–8.7) 108cm–3. The interpretation for the mechanism of the current passage to the anode is also proposed based on the model. In particular, the explanation of the fact that at a low discharge current the region of the positive column plasma near the flat anode appears is given.

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Influences of gas pressure and applied voltage on electron beam generated by triggered pseudospark discharge

et al. 2022

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Used widely in microwave devices and material processing, triggered pseudospark discharge can generate an electron beam, the adjustability of which is affected greatly by the working gas pressure and the applied voltage of the pseudospark discharge. This paper reports the development of an electron-beam source based on a single-gap triggered pseudospark discharge device. Its working performance, as measured by the peak beam current, charge quantity, and pulse width, was studied experimentally, and the results showed that the peak beam current increased initially and then decreased with increasing gas pressure. This was because the beam current was limited by the low plasma density at low pressures, while the electron scattering and ion neutralization during drift decreased the beam current at high pressures. The pulse width of the beam current was consistent with that of the loop current and was determined by the damping coefficient of the discharge circuit. With increasing gas pressure, the pulse width decreased gradually. When the gas pressure was constant, the peak beam current increased significantly with increasing applied voltage because of the enhanced electron-emission current and weakened electron scattering. The charge quantity of the beam current also increased with increasing applied voltage, but the pulse width decreased slightly. Based on the above results, this paper also reports qualitative analysis of the change of the discharge process corresponding to the variation of the electron-beam parameters with gas pressure and applied voltage.

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Implementation of Trigger Unit for Generation of High-Current-Density Electron Beam

Cited by 15 publications

References 24 publications

Energy Plasma Graphite Wastewater Treatment System Based on Internet of Things Platform

Energy Plasma Graphite Wastewater Treatment System Based on Internet of Things Platform

Operating modes in a low-pressure glow discharge with hollow cathode

Influences of gas pressure and applied voltage on electron beam generated by triggered pseudospark discharge

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