Generation of high-energy electrons in a transverse slot-cathode nanosecond discharge at working gas medium pressures

Ашурбеков, Н. А.; Iminov, K. O.; Kobzev, O. V.; Kobzeva, V. S.

doi:10.1134/s1063784210080104

Cited by 17 publications

(12 citation statements)

References 2 publications

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“…The calculations made using experimentally obtained helium discharge electric characteristics at pressure p=10 Torr and voltage U 0 =2 kV have shown that the electron beam current on the anode surface is 20% lower than the anode discharge current [14]. The increase in U 0 to 2.5 kV causes growth of the electron beam intensity.…”

Section: Resultsmentioning

confidence: 98%

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: 98%

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

Ашурбеков¹,

Iminov²,

Popov³

2017

Plasma Sci. Technol.

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“…Для постановки экспериментов была использована автоматизированная экспериментальная установка, подробно описанная в [6]. Установка состоит из генератора высоковольтных наносекундных импульсов напряжения (ГИН), разрядной камеры, системы откачки и контроля давления газа, систем регистрации электрических и оптических характеристик разряда с выводом всех результатов измерений на персональный компьютер.…”

Section: методика и техника экспериментаunclassified

“…Такое перераспределение поля в разряде со щелевым катодом позволяет получать пучки высокоэнергетических электронов при гораздо меньших значениях прикладываемого напряжения. Влияние начальных условий и геометрии поверхности катода на свойства ППР с полым катодом исследовано в [4][5][6].…”

Section: Introductionunclassified

A study of the effects of interaction of the plasma-beam discharge with the dielectric walls of the discharge chamber

Ашурбеков¹,

Iminov²,

Ramazanov³

et al. 2016

HDSU

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В работе представлены экспериментальные исследования роли диэлектрических стенок разрядной камеры в процессах формирования наносекундного плазменно-пучкового разряда в инертных газах. Установлена взаимосвязь между электрическими характеристиками разряда и процессами накопления и релаксации зарядов, осажденных на поверхности диэлектрика. Показано, что изменение распределения электрического поля в промежутке приводит к изменению структуры разряда, в том числе и под действием поверхностного потенциала диэлектрических пластинок. Ключевые слова: плазменно-пучковый разряд, инертные газы, диэлектрические свойства материала, наносекундный разряд.

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“…Plasma source based on high-voltage nanosecond discharge with extended hollow cathode at low and medium gas pressures [1,2] can be used in plasma chemistry, in plasma medicine, as well as in various technologies, in particular in technologies of atomic, molecular layer deposition and etching of micro and nano-electronic materials surface (see, for example, [3]).…”

mentioning

confidence: 99%

Electron energy distribution function in a high-voltage pulsed discharge with an extended hollow cathode

Ашурбеков

Zakaryaeva

K.O.

et al. 2022

Technical Physics Letters

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The dynamics of a nanosecond discharge with an extended hollow cathode in argon is studied and the electron energy distribution function (EEDF) in a plasma column is calculated. The issues of the formation of the EEDF in the discharge column and inside the cathode cavity are considered. The conditions of the validity the two-term approximation of the EEDF in the plasma column are analyzed and the appropriate evaluations are given. Keywords: hollow cathode, pulse discharge, argon, electron energy distribution function.

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Generation of high-energy electrons in a transverse slot-cathode nanosecond discharge at working gas medium pressures

Cited by 17 publications

References 2 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

A study of the effects of interaction of the plasma-beam discharge with the dielectric walls of the discharge chamber

Electron energy distribution function in a high-voltage pulsed discharge with an extended hollow cathode

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