Dependence of electron beam generation in an open discharge on the discharge gap configuration and gas pressure

Golovin, A. I.; Golubev, M. M.; Egorova, E. K.; Turkin, Arthur; Shloydo, A. I.

doi:10.1134/s1063784214050089

Cited by 13 publications

(3 citation statements)

References 4 publications

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“…The solution was found by applying method of finite differences. In particular, the third equation was solved with the help of Libman's method of iteration [10][11][12]. In the numerical simulation, the maximum electron density was determined from the conductivity of the discharge, estimated from the current-voltage characteristics.…”

Section: Resultsmentioning

confidence: 99%

“…In recent years electron beams have been found experimentally in nanosecond electrical discharges in inert gases at pressures up to 1 atm [1][2][3][4][5][6][7][8]. For practical applications, non-equilibrium and non-stationary low-temperature plasmas with a large area ('plasma sheet') are of great interest and are widely used in various technological processes (plasma and ion beam etching, plasma-chemical deposition) and as sources of pulsed optical radiation [9,10]. One of the methods for large plasma generation employs gas ionization by high-energy ribbon electron beams.…”

Section: Introductionmentioning

confidence: 99%

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Current self-limitation in a transverse nanosecond discharge with a slotted cathode

Ашурбеков¹,

Iminov²,

Popov³

2017

Plasma Sci. Technol.

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A high-voltage transverse pulsed nanosecond discharge with a slotted hollow cathode was found to be a source of high-energy (few kV) ribbon electron beams. Conditions for the formation and extinction of electron beams were experimentally studied in discharges in helium at pressures of 1-100 Torr. It was found that interaction of fast electrons with a non-uniform electric field near the slotted cathode led to limitation of the magnitude of the discharge current. A physical model was developed to describe the discharge current self-limitation that was in satisfactory agreement with the experimental results. Some technical solutions that are expected to increase the upper current limits in transverse nanosecond discharge are discussed.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Current self-limitation in a transverse nanosecond discharge with a slotted cathode

Ашурбеков¹,

Iminov²,

Popov³

2017

Plasma Sci. Technol.

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“…В то же время известны работы, авторы которых придерживаются другой точки зрения. Как и в обычном аномальном разряде, считается, что эмиссия электронов в основном осуществляется под действием быстрых атомов и ионов [9][10][11], и этого достаточно для обеспечения наблюдаемых времен коммутации [11,12].…”

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Коммутация Высоковольтных Импульсов В Устройствах На Основе Открытого Разряда В Азоте И Кислороде

Бохан¹,

Гугин²,

Zakrevskĭi³

et al. 2020

Письма В Журнал Технической Физики

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Comparative studies of the switching characteristics of devices based on an open discharge - kivotrons in molecular gases (nitrogen and oxygen), as well as their mixtures with helium - have been carried out. The choice of nitrogen and oxygen is due to the fact that the emission coefficients of electrons under the action of their heavy particles are much higher than for helium. It is shown that for this case, as well as with the predominance of the photoelectronic emission mechanism in helium, it is also possible to create fast switches. Their advantage is significantly lower requirements for the cleanliness of the working environment.

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Paschen curves and current–voltage characteristics of large-area short glow discharge with different electrode structures

et al. 2020

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In this work, the Paschen curves and current–voltage characteristics of three large-area short glow discharge structures with grid and solid plate electrodes are studied. The study of the Paschen's curves reveals that Paschen's law is broken for all three investigated electrode structures. It is shown that the experimentally measured Paschen curves are well approximated with a modified Paschen's law. A comparison of the current–voltage characteristics of the short glow discharge in the three types of electrode structures reveals that the use of grid electrodes allows for the increase in the discharge current. The effects of the electrode gap, which were varied from 1 mm to 7 mm, on the Paschen curves and current–voltage characteristics of short glow discharges are also investigated.

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Dependence of electron beam generation in an open discharge on the discharge gap configuration and gas pressure

Cited by 13 publications

References 4 publications

Current self-limitation in a transverse nanosecond discharge with a slotted cathode

Current self-limitation in a transverse nanosecond discharge with a slotted cathode

Коммутация Высоковольтных Импульсов В Устройствах На Основе Открытого Разряда В Азоте И Кислороде

Paschen curves and current–voltage characteristics of large-area short glow discharge with different electrode structures

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