Investigation of the conditions governing the formation of a plasma-beam discharge with no magnetic field

Popovich, V. P.; Novskova, T. A.; Kharchenko, I. F.; Shustin, E. G.

doi:10.1007/bf01031354

Cited by 3 publications

(1 citation statement)

References 4 publications

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“…Without use of external magnetic field, the injected primary electron beam diffusely scatters on the neutral gas, creating a uniform conical plasma formation in the vacuum vessel. This type of discharge is also associated with BPD [12]. Due to the development of previously mentioned beam-plasma instability, the electron kinetic energy is converted to the plasma oscillations with frequencies up to 𝜔 pe √ 1 + 𝜀 where 𝜀 is permittivity of the gas medium surrounding the electron beam.…”

Section: Introductionmentioning

confidence: 99%

A new compact linear beam-plasma discharge simulator BPD-PSI

2022

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A new BPD-PSI line-type plasma simulator is introduced. The device features two vacuum units: a target unit and an electron gun unit, connected to each other by a water-cooled electron beam transport channel. The Pierce-type electron gun is used to generate stationary or pulsed electron beam, utilized for beam-plasma discharge generation. The plasma electron density can be varied in the range of n e = 1 × 1016 - 1 × 1018 m-3 with electron temperature in the range of T e = 1-20 eV. The ion flux of 1 × 1021 m-2 s-1 and heat fluxes up to 5 MW m-2 are obtained. A set of utilized plasma and plasma-surface interaction diagnostics are described. Five demonstration experiments are presented: 1) high vs low power beam-plasma operation, 2) beam-plasma discharge with/without presence of an external magnetic field, 3) incident ion flux composition analysis, 4) incident ion energy distribution function measurement, 5) in-situ target surface temperature control and in-vacuo thermal desorption spectroscopy measurement. All of the technical features of the setup described in this paper make it a new tool for studying plasma-surface interactions.

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Section: Introductionmentioning

confidence: 99%

A new compact linear beam-plasma discharge simulator BPD-PSI

2022

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Polarization of atomic ensembles in ionized gases

Казанцев¹,

Polynovskaya²,

Pyatnitskii³

et al. 1988

Sov. Phys. Usp.

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Polarization of atomic ensembles in ionized gases

Kazantsev¹,

Polinovskaya²,

Pyatnitskii³

et al. 1988

Usp. Fiz. Nauk

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Теоретическое описание процессов поляризации ансамбля возбужденных частиц 2.1. Поляризационные моменты атомной матрицы плотности. 2.2. Элементарные процессы поляризации атомного ансамбля. 3. Анизотропия движения электронов и кинетика поляризации атомных ансамблей 3.1. Мультипольное разложение функции распределения электронов. 3.2. Ани зотропные характеристики функции распределения электронов в электрическом поле. 3.3. Особенности кинетики поляризационных моментов в плазме. 4. Экспериментальные методы исследования поляризационных эффектов . . . . 4.1. Средства поляриметрии. 4.2. Оптико магнитный метод. 4.3. Обратная задача поляризационной спектроскопии. 5. Поляризационная спектрометрия ионизованных газов . . . . . . . . . . . 5.1. Положительный столб тлеющего разряда. 5.2. Емкостной высокочастотный разряд. 5.3. Область взаимодействия с газом движущейся плазмы. 5.4. Газо наполненный диод. 5.5. Пучково плазменный разряд. 5.6. Плазма, образованная электронным пучком. 5.7. Дуга при атмосферном давлении. 5.8. Хромосферные вспышки.

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Investigation of the conditions governing the formation of a plasma-beam discharge with no magnetic field

Cited by 3 publications

References 4 publications

A new compact linear beam-plasma discharge simulator BPD-PSI

A new compact linear beam-plasma discharge simulator BPD-PSI

Polarization of atomic ensembles in ionized gases

Polarization of atomic ensembles in ionized gases

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